Work, Energy and Power

Related Questions

• A rubber ball is dropped from a height of 5 m on a planet where the acceleration due to gravity is not known. On bouncing, it rises to 1.8 m. The ball loses its velocity on bouncing by a factor of

  ---

• A force $\vec F = (5\hat i + 4\hat j)$ N acts on a body and produces a displacement $\vec S = (6\hat i - 5\hat j + 3\hat k)$m. The work done will be

  ---

• The potential energy of a certain spring when stretched through a distance ‘S’ is 10 joule. The amount of work (in joule) that must be done on this spring to stretch it through an additional distance ‘S’ will be

  ---

• A ball hits a vertical wall horizontally at 10m/s bounces back at 10 m/s

  ---

• If the momentum of a body increases by 0.01%, its kinetic energy will increase by

  ---