Question # 1

A body is thrown from a height h with speed u, it hits the ground with speed V

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The value of V is maximum if the body is thrown vertically downward

The value of V is maximum if the body is thrown vertically upwards

The value of V is minimum if the body is thrown horizontally

The value of V does not depend on the direction of which it is thrown

A body moving with an acceleration of 5 m/sec²started with velocity of 10 m/sec. What will be the distance traversed in 10 seconds?

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150 m

250 m

350 m

400 m

The magnitude of the force producing an acceleration of 10 m/sec²in a body of mass 500 grams is:

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3 N

4 N

5 N

6 N

The slopes of the tangent at any point on the curve gives the value of the

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average velocity at that point

instantaneous velocity at that point

average acceleration at that point

instantaneous acceleration at that point

The velocity of a body at any instant of its motion is known as

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average velocity

instantaneous velocity

uniform velocity

none of them

A body moving with an acceleration of 5 m/sec²started with velocity of 10 m/sec. What will be the distance traversed in 10 seconds?

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150 m

250 m

350 m

400 m

The vertical component of velocity of a projectile during its motion is minimum

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at the time of projection

at the highest point

just before hitting the plane of projection

all of them

The motion in a plane is the motion in

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one dimension

two dimension

three dimension

four dimension

The velocity given to a body to go out of the influence of earth's gravity is known as:

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Terminal velocity

Orbital velocity

Escape velocity

None of these

Velocity of a body changes if

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direction of the body changes

speed of the body changes

neither speed nor direction changes

either speed or direction changes

The projectile attains maximum horizontal range when it is projected at an angle of

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30°

45°

60°

75°

Two bullets are fired simultaneously, horizontally and with different speeds from the same place. Which bullet will hit the ground first?

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The faster one

Depends on their mass

The slower one

Both will reach simultaneously

Change in momentum is one second called.

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Impulse

Force

Energy

Work

The velocity of a projectile is maximum

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at the point of projection

just before striking the ground

at none of them

at both of them

When brakes are applied to a fast moving car, the passenger will be thrown:

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Forward

Backward

Downward

none of these

A typical rocket consumes about

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100 kg s^-1of fuel

1000 kg s^-1of fuel

10000 kg s^-1of fuel

100000 kg s^-1of fuel

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