32. If a machine does 550-foot-pound work in one second its power will be ;

31. If the mass of the body is made three times and the velocity becomes double then kinetic energy will increase

30. Choose the wrong statement. The escape velocity of the body from the planet depends upon

29. Two bodies with the masses m1 and m2 have equal kinetic energies if M1 and M2 are their respective momentum then the ratio between M1 & M2 are

28. The energy stored in the spring of water is :

27. If work is done at a rate of 240 watt × min by a machine. its power is ;

26. If the momentum of body is decreased by 20% the decrease in kinetic energy will be :

24. if the velocity of the body becomes half , the kinetic energy of the body will become ;

23. when a body moves against the force of friction on the horizontal plane, the work done by the body is,

22. A 6.0 KG block is released from rest 80m above the ground. when it has fallen 60m its K.E is approximately .