A body is acted upon by a force.State two conditions when the work done is zero.

A body is acted upon by balanced forces

A body is acted upon by a force. If work done by the force is zero, then which of the following is (are) possible?

A body is acted upon by a force which is inversely proportional to the distance covered. The work done will be proportional to

Starting at rest , a 10kg object is acted upon by only one force as indicated in figure. Then the total work done by the force is :

The earth, moving around the sun in a circular orbit, is acted upon by a force and hence work must be done on earth by this force.

Starting from rest a 10 kg object is acted upon by only one force as indicated in figure. Then the total work done by the force in 5 seconds is

A body held completely immersed inside a liquid experiences two forces: (i) F_(1) , the force due to gravity and (ii) F_(2) the buoyant force. Draw a diagram showing the direction of these forces acting on the body and state the conditions when the body will float or sink.

A body is acted upon by two unequal forces in opposite directions, but not in the same line. The effect is that:

A body of mass 2 kg starts with an intitial-velocity 5 m/s. It the body is acted upon by a time dependent force (F) as shown in figure, then work done on the body in 20 s is A. − 875 J B. 875J C. 600J D. − 600 N J

A body is acted upon by two forces each of magnitude F, but in opposite directions. State the effect of the forces if (a) both forces act at the same point of the body. (b) the two forces act at two different points of the body at a separation?