Work done is said to be zero, when – McqOptions

MCQOPTIONS

1.	Work done is said to be zero, when
A.	Some force acts on a body, but displacement is zero
B.	No force acts on a body but some displacement takes place
C.	Either (A) or (B)
D.	None of the above
Answer» D. None of the above

Discussion

No Comment Found

Related MCQs

The moment of inertia of a square of side a about its base is a4/ 3.
The unit of mass moment of inertia in S.I. units is kg-m2.
The above figure shows the three coplaner forces P, Q and R acting at a point O. If these forces are in equilibrium, then
Onejoule is equal to
The linear acceleration (a) of a body rotating along a circular path of radius (r) with an angular acceleration of α rad / s2, is
The time of flight (t) of a projectile on an upward inclined plane is(where u = Velocity of projection, α = Angle of projection, and β = Inclination of the plane with the horizontal.)
A block ot mass 20 kg lying on a rough horizontal plane is connected by a light string passing over a smooth pulley to another mass 5 kg, which can move freely in the Vertical direction, as shown in the below figure. The tension in the string will __________ with the increase in coefficient of friction.
The above figure shows the two equal forces at right angles acting at a point. The value of force R acting along their bisector and in opposite direction is
A lift moves downwards with an acceleration of 9.8 m/s2. The pressure exerted by a man on the floor of the lift is zero.
A newton is defined as the force while acting upon a mass of one kg, produces an acceleration of 1 m / s2 in the direction of which it acts.