A point mass having mass M is moving with a velocity V at an angle θ to the wall as shown in the figure. The mass undergoes a perfectly elastic collision with the smooth wall and rebounds. The total change (final minus initial) in the momentum of the mass is

A point mass having mass M is moving with a velocity V at an angle θ

1.	A point mass having mass M is moving with a velocity V at an angle θ to the wall as shown in the figure. The mass undergoes a perfectly elastic collision with the smooth wall and rebounds. The total change (final minus initial) in the momentum of the mass is
A.	-2MV cos θ ĵ
B.	2MV sin θ ĵ
C.	2MV cos θ ĵ
D.	-2MV sin θ ĵ
Answer» E.

Discussion

No Comment Found

Related MCQs

A mass ‘M’ is suspended from a ceiling through a string of length ‘L’. This mass moves in a circle of horizontal radius ‘r’ at constant speed such that it is a conical pendulum. The tension in the string will be
A ball is dropped from a height of 15 m above a metal platform. The ball strikes the platform and rebounds successively. The height of rebound after the first rebound is:(Coefficient of restitution can be taken as 0.8)
If light and a heavy body have an equal kinetic energy of translation, then ________.
A projectile is projected from a point on ground with velocity of projection 'u' and angle of projection 'θ' . How much maximum height can the projectile reach ?
An artificial satellite revolves around the earth with a relative velocity of 800 m/s. If acceleration due to gravity is 9 m/s2 and gravitational force is 3600 N, then the mass of satellite is
A ball is falling freely from a height of 20 m then the velocity of ball when it reaches the ground at 20 m is (assume the acceleration of gravity as 10 m/s2 )?
A car having weight W is moving in the direction as shown in the figure. The center of gravity (CG) of the car is located at height h from the ground, midway between the front and rear wheels. The distance between the front and rear wheels is l. The acceleration of the car is a, and acceleration due to gravity is g. The reactions on the front wheels (Rf) and rear wheels (Rr) are given by
A man is standing in a lift and the lift is ascending with an upward acceleration 'f'. The man will appear to be heavier by
In elastic collisions of bodies:
A ball of mass 1kg moving with the velocity of 2m/s collide directly with another stationary ball of mass 2kg and comes to rest after impact. The velocity of second ball after impact is:

A point mass having mass M is moving with a velocity V at an angle θ to the wall as shown in the figure. The mass undergoes a perfectly elastic collision with the smooth wall and rebounds. The total change (final minus initial) in the momentum of the mass is

Discussion

No Comment Found

Related MCQs

Reply to Comment