51. Momentum = . . . . . . . .
52. If the weight of an object is 200 N, find its mass. (g = 10 ms-2)
53. The example of the conservative force is
54. Which of the following equations calculates momentum?
55. Flying a rocket can be understood by . . . . . . . .
56. 20 N force is acting on a body. Body moves 4 meter in direction of applied force, then work done is-
57. What can be predicted with respect to the energy in the given figure?
58. Assertion (A) Work done by friction on a body sliding down an inclined plane is positive.
Reason (R) Work done is greater than zero it the angle between force and displacement is acute.
Reason (R) Work done is greater than zero it the angle between force and displacement is acute.
59. The product of force and displacement is called-
60. When the hammer of 15kg is raised to a height of 10m, find the potential energy obtained by it?
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