Work, Energy and Power

Related Questions

• A force $F = (5\hat i + 3\hat j)$ newton is applied over a particle which displaces it from its origin to the point $r = (2\hat i - 1\hat j)$ metres. The work done on the particle is

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• The bob of a simple pendulum (mass m and length l) dropped from a horizontal position strikes a block of the same mass elastically placed on a horizontal frictionless table. The K.E. of the block will be

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• A motor boat is travelling with a speed of 3.0 m/sec. If the force on it due to water flow is 500 N, the power of the boat is

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• The kinetic energy acquired by a body of mass m is travelling some distance s, starting from rest under the actions of a constant force, is directly proportional to

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• If a force $\vec F = 4\hat i + 5\hat j$ causes a displacement $\vec s = 3\hat i + 6\hat k$, work done is

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