Ratio_of_the_radii_of_planes_P1_and_P2_is_k_and_ratio_of_the_accelerations_due_to_gravity_on_them_is_s._Ratio_of_escape_velocities_from_them_will_be$

‚Äö√Ñ√∂‚àö‚Ä†‚àö‚àÇks

‚Äö√Ñ√∂‚àö‚Ä†‚àö‚àÇk/s

‚Äö√Ñ√∂‚àö‚Ä†‚àö‚àÇs/k

Two particles with masses in the ratio 1 : 4 are moving with equal kinetic energies. The magnitude of their linear momentums will conform to the ratio

‚Äö√Ñ√∂‚àö‚Ä†‚àö‚àÇ2 : 1

‚Äö√Ñ√∂‚àö‚Ä†‚àö‚àÇ2

A heavy block of mass m is slowly placed on a conveyer belt moving with speed v. If coefficient of friction between block and the belt is ‚âà√≠¬¨‚à´, the block will slide on the belt through distance$

v2/‚Äö√Ñ√∂‚àö‚Ä†‚àö‚àÇ‚âà√≠¬¨‚à´g

If two bodies one light and other heavy have equal kinetic energies, which one has a greater momentum

it depends on the actual velocities

Which of the following statements regarding laws governing the friction between dry surfaces are correct?

The friction force is directly proportional to the normal force.

The friction force is dependent on the materials of the contact surfaces.

The friction force is independent of the area of contact.

16 + Mcqs in Coefficient Friction in Machine Kinematics Page 1 McqOptions

1.	Ratio of the radii of planes P1 and P2 is k and ratio of the accelerations due to gravity on them is s. Ratio of escape velocities from them will be
A.	ks
B.	√ks
C.	√k/s
D.	√s/k
Answer» E.

Discussion

2.	A car moving with speed u can be stopped in minimum distance x when brakes are applied. If the speed becomes n times, the minimum distance over which the car can be stopped would take the value
A.	x/n
B.	nx
C.	x/n2
D.	n2x
Answer» E.

Discussion

3.	A stone is projected horizontally from a cliff at 10 m/sec and lands on the ground below at 20 m from the base of the cliff. Find the height of the cliff.
A.	18 m
B.	20 m
C.	22 m
D.	24 m
Answer» C. 22 m

Discussion

4.	A particle starts with a velocity 2 m/sec and moves on a straight-line track with retardation 0.1 m/s2. The time at which the particle is 15 m from the startin g point would be
A.	10 s
B.	20 s
C.	50 s
D.	40 s
Answer» B. 20 s

Discussion

5.	A heavy block of mass m is slowly placed on a conveyer belt moving with speed v. If coefficient of friction between block and the belt is μ, the block will slide on the belt through distance
A.	v/μg
B.	v2/√μg
C.	(v/μg)2
D.	v2/2μg
Answer» E.

Discussion

6.	A block whose mass is 650 gm is fastened to aspring constant K equals 65 N/m whose other end is fixed. The block is pulled a distance x = 11 cm from its equilibrium position at x = 0 on a smooth surface, and released from rest at t = 0. The maximum speed ‘S’ of the oscillating block is
A.	11 cm /sec
B.	11 m/sec
C.	11 mm/sec
D.	1.1 m/sec
Answer» E.

Discussion

7.	A_CAR_MOVING_WITH_SPEED_U_CAN_BE_STOPPED_IN_MINIMUM_DISTANCE_X_WHEN_BRAKES_ARE_APPLIED._IF_THE_SPEED_BECOMES_N_TIMES,_THE_MINIMUM_DISTANCE_OVER_WHICH_THE_CAR_CAN_BE_STOPPED_WOULD_TAKE_THE_VALUE?$
A.	x/n
B.	nx
C.	x/n<sup>2</sup>
D.	n<sup>2</sup>x
Answer» E.

Discussion

8.	Ratio_of_the_radii_of_planes_P₁_and_P₂_is_k_and_ratio_of_the_accelerations_due_to_gravity_on_them_is_s._Ratio_of_escape_velocities_from_them_will_be$
A.	ks
B.	‚Äö√Ñ√∂‚àö‚Ä†‚àö‚àÇks
C.	‚Äö√Ñ√∂‚àö‚Ä†‚àö‚àÇk/s
D.	‚Äö√Ñ√∂‚àö‚Ä†‚àö‚àÇs/k
Answer» E.

Discussion

9.	A stone is projected horizontally from a cliff at 10 m/sec and lands on the ground below at 20 m from the base of the cliff. Find the height of the cliff?
A.	18 m
B.	20 m
C.	22 m
D.	24 m
Answer» C. 22 m

Discussion

10.	Two particles with masses in the ratio 1 : 4 are moving with equal kinetic energies. The magnitude of their linear momentums will conform to the ratio
A.	1 : 8
B.	1 : 2
C.	‚Äö√Ñ√∂‚àö‚Ä†‚àö‚àÇ2 : 1
D.	‚Äö√Ñ√∂‚àö‚Ä†‚àö‚àÇ2
Answer» C. ‚Äö√Ñ√∂‚àö‚Ä†‚àö‚àÇ2 : 1

Discussion

11.	A particle starts with a velocity 2 m/sec and moves on a straight-line track with retardation 0.1 m/s². The time at which the particle is 15 m from the startin g point would be
A.	10 s
B.	20 s
C.	50 s
D.	40 s
Answer» B. 20 s

Discussion

12.	A car moving with uniform acceleration cover 450 m in a 5 second interval, and covers 700 m in the next 5 second interval. The acceleration of the car is
A.	7 m/s<sup>2</sup>
B.	50 m/s<sup>2</sup>
C.	25 m/s<sup>2</sup>
D.	10 m/s<sup>2</sup>
Answer» E.

Discussion

13.	A heavy block of mass m is slowly placed on a conveyer belt moving with speed v. If coefficient of friction between block and the belt is ‚âà√≠¬¨‚à´, the block will slide on the belt through distance$
A.	v/‚âà√≠¬¨‚à´g
B.	v<sup>2</sup>/‚Äö√Ñ√∂‚àö‚Ä†‚àö‚àÇ‚âà√≠¬¨‚à´g
C.	(v/‚âà√≠¬¨‚à´g)<sup>2</sup>
D.	v<sup>2</sup>/2‚âà√≠¬¨‚à´g
Answer» E.

Discussion

14.	If two bodies one light and other heavy have equal kinetic energies, which one has a greater momentum
A.	heavy body
B.	light body
C.	both have equal momentum
D.	it depends on the actual velocities
Answer» B. light body

Discussion

15.	Which of the following statements regarding laws governing the friction between dry surfaces are correct?
A.	The friction force is directly proportional to the normal force.
B.	The friction force is dependent on the materials of the contact surfaces.
C.	The friction force is independent of the area of contact.
D.	all of the mentioned
Answer» E.

Discussion

16.	A block whose mass is 650 gm is fastened to aspring constant K equals 65 N/m whose other end is fixed. The block is pulled a distance x = 11 cm from its equilibrium position at x = 0 on a smooth surface, and released from rest at t = 0. The maximum speed ‚Äö√Ñ√∂‚àö√ë‚àö‚â§S‚Äö√Ñ√∂‚àö√ë‚àö¬• of the oscillating block is
A.	11 cm /sec
B.	11 m/sec
C.	11 mm/sec
D.	1.1 m/sec
Answer» E.

Discussion

Explore topic-wise MCQs in Machine Kinematics.

Ratio of the radii of planes P1 and P2 is k and ratio of the accelerations due to gravity on them is s. Ratio of escape velocities from them will be

A car moving with speed u can be stopped in minimum distance x when brakes are applied. If the speed becomes n times, the minimum distance over which the car can be stopped would take the value

A stone is projected horizontally from a cliff at 10 m/sec and lands on the ground below at 20 m from the base of the cliff. Find the height of the cliff.

A particle starts with a velocity 2 m/sec and moves on a straight-line track with retardation 0.1 m/s2. The time at which the particle is 15 m from the startin g point would be

A heavy block of mass m is slowly placed on a conveyer belt moving with speed v. If coefficient of friction between block and the belt is μ, the block will slide on the belt through distance

A block whose mass is 650 gm is fastened to aspring constant K equals 65 N/m whose other end is fixed. The block is pulled a distance x = 11 cm from its equilibrium position at x = 0 on a smooth surface, and released from rest at t = 0. The maximum speed ‘S’ of the oscillating block is

A_CAR_MOVING_WITH_SPEED_U_CAN_BE_STOPPED_IN_MINIMUM_DISTANCE_X_WHEN_BRAKES_ARE_APPLIED._IF_THE_SPEED_BECOMES_N_TIMES,_THE_MINIMUM_DISTANCE_OVER_WHICH_THE_CAR_CAN_BE_STOPPED_WOULD_TAKE_THE_VALUE?$

Ratio_of_the_radii_of_planes_P1_and_P2_is_k_and_ratio_of_the_accelerations_due_to_gravity_on_them_is_s._Ratio_of_escape_velocities_from_them_will_be$

A stone is projected horizontally from a cliff at 10 m/sec and lands on the ground below at 20 m from the base of the cliff. Find the height of the cliff?

Two particles with masses in the ratio 1 : 4 are moving with equal kinetic energies. The magnitude of their linear momentums will conform to the ratio

A particle starts with a velocity 2 m/sec and moves on a straight-line track with retardation 0.1 m/s2. The time at which the particle is 15 m from the startin g point would be

A car moving with uniform acceleration cover 450 m in a 5 second interval, and covers 700 m in the next 5 second interval. The acceleration of the car is

A heavy block of mass m is slowly placed on a conveyer belt moving with speed v. If coefficient of friction between block and the belt is ‚âà√≠¬¨‚à´, the block will slide on the belt through distance$

If two bodies one light and other heavy have equal kinetic energies, which one has a greater momentum

Which of the following statements regarding laws governing the friction between dry surfaces are correct?

Ratio_of_the_radii_of_planes_P₁_and_P₂_is_k_and_ratio_of_the_accelerations_due_to_gravity_on_them_is_s._Ratio_of_escape_velocities_from_them_will_be$

A particle starts with a velocity 2 m/sec and moves on a straight-line track with retardation 0.1 m/s². The time at which the particle is 15 m from the startin g point would be