41. If the number representing volume and surface area of a cube are equal, then the length of the edge of the cube in terms of the unit of measurement will be
42. A dynamo is used to convert
43. An oil tanker is partially filled with oil and moves forward on a level road with uniform acceleration. The free surface of oil, then
44. What will be the momentum of an object of mass $$\frac{m}{2}$$ and whose velocity is 2v?
45. When an object of 15 kg is at a height of 10 m from the ground, then find the energy contained in it ? (g = 10ms-2)
46. If the air resistance is negligible, then what will be sum of the potential energy and kinetic energy of the freely falling object.
47. The ability of an object to do the work energy contained in an object is depend on the-
48. When an object of 11 kg is at a height of 5 m from the ground, then find the energy contained in it? (g = 9.8ms-2)
49. A worker takes 10 kg of goods from the ground and puts it on 1.1m above the land on his head. What will be the work done by the worker.
50. A 40 gm bullet is fired horizontally from a gun of mass 3 kg has velocity of 180 m/s. Find the recoil velocity of gun?
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