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Mechanics and Properties of Matter


1. 

The mass of a body on earth is 100kg.(acceleration due to gravity, ge=10m/s2). If acceleration due to gravity on moon is (ge/6), then the mass of the body on the moon is

Answer : C. 100 kg (Mass is indestructible.no matter where you are in the universe your mass will never change and Mass can never be zero)

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2. 

The acceleration due to gravity of a catastrophic earthquake will be

Answer : D. 980 cm/sec2

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3. 

If a ball is dropped from the roof of a building with a constant acceleration of 9.8 m/s2 , what will be its velocity after 3 seconds?

Answer : C. 29.4 m/s

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4. 

A person can jump higher at the moon's surface than on the earth's surface. Since,

Answer : D. the value of acceleration due to gravity on the moon's surface is less

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5. 

momentum of a moving body

Answer : C. depends upon both its mass and velocity

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6. 

If the linear momentum of a particle is doubled then its Kinetic Energy will be

Answer : B. quadrupled

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