Laws of Motion

Related Questions

• In the figure shown, a block of weight 10 N resting on a horizontal surface. The coefficient of static friction between the block and the surface ${\mu _s} = 0.4$. A force of 3.5 N will keep the block in uniform motion, once it has been set in motion. A horizontal force of 3 N is applied to the block, then the block will

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• When a body is moving on a surface, the force of friction is called

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• A force of 98 N is required to just start moving a body of mass 100 kg over ice. The coefficient of static friction is

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• A rocket has a mass of 100 kg. 90% of this is fuel. It ejects fuel vapours at the rate of 1 kg/sec with a velocity of 500 m/sec relative to the rocket. It is supposed that the rocket is outside the gravitational field. The initial upthrust on the rocket when it just starts moving upwards is

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• An elevator weighing 6000 kg is pulled upward by a cable with an acceleration of $5\,m{s^{ - 2}}$. Taking g to be $10\,m{s^{ - 2}}$, then the tension in the cable is

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