A bullet is shot into a block of wood resting on a table. The bullet was stuck inside the block after the impact. The block slides along the table in a straight line and comes to a stop as a result of the collision. The mass of the bullet is 2.0g, the mass of the wood block is 56g, the velocity at instant of impact of the bullet was 140 m/s, the stopping distance of the table was 2.8m. Calculate the average frictional force that the surface of the table exerts on the wood block whilst the block is moving.

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A: Roofs of the huts are blown up during stormy days because  

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Q: What are energies possessed by liquid?

A: Energies possessed by liquid in motion are:

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A: (i)A resultant force is a single force that acts on an object. It is the vector sum of all the force...

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Q: A person can throw stone at maximum height H. What is the maximum horizontal distance he can throw?

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Q: Out of the three Newton's laws which is the law of motion? Why? Up

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A:

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Q: A cricket ball and a table tennis ball are moving with the same velocity. Which is easy to catch?

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Q: An astronaut in a satellite orbiting the Earth feels weightlessness.Does weightlessness depend upon ...

A: No.

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Q: Why heat is called the disordered energy?

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Q: What do the various colors displayed in the flame of burning log represent?

A:

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A: We know that,

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Q: Why it is difficult to measure impulsive force?

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A:

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A:

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