Question # 1

The distance covered by a body in unit time is called.

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Displacement

speed

Velocity

Both B and C

Distance covered by a freely falling body in 2 sec will be

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4.9 m

19.6 m

29.2 m

44.1 m

The path followed by the projectile is known as:

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Cycle

Hyperbola

Trajectory

Route

A body of mass 1.0 kg is falling with an acceleration of 10 m/s². Its apparent weight will be (g=10 m/s²)

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1.0 kg wt

2.0 kg wt

0.5 kg wt

Zero

The artillery shells travel along parabolic paths under the influence of

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magnetic field

electric field

electromagnetic field

gravitational field

A snooker ball moving with velocity V collides head on with another snooker ball of same mass at rest. If the collision is elastic, the velocity of second snooker ball is

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Zero

Infinity

V

2 V

The time of flight of a projectile motion equal to

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half of the time to reach maximum height

twice the time to reach maximum height

one fourth of time to reach maximum height

time to reach maximum height

The magnitude of the force producing an acceleration of 10 m/sec2 in a body of mass 500 grams is:

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3 N

4 N

5 N

6 N

A person is sitting in a traveling train and facing the engine. He tosses up a coin and the coin falls behind him. It can be concluded that the train is

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Moving forward and gaining speed

Moving forward and losing speed

Moving forward with uniform speed

Moving backward with uniform speed

Maximum height of a bullet when fixed at 30 with horizontal is 11 m. Then height when it is fired at 60° is

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22 m

6 m

33 m

7.8 m

Essential characteristic of equilibrium is

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Momentum equal to zero

Acceleration equal to zero

Kinetic energy equal to zero

Velocity equal to zero

Distance covered by a freely failing body n the first second of its motion will be:

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4.9 m

9.8 m

19.6 m

29.4 m

Earth is considered to be

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a non-inertial frame

an inertial frame

an accelerated frame

none of the above

Angular momentum

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Scalar

Axial vector

Polar vector

At 45° angle

A body of weight 1 N has a kinetic energy of 1 joule when its speed is:

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1.46 m sec^-1

2.44 m sec^-1

3.42 m sec^-1

4.43 m sec^-1

The vertical and horizontal range will be equal id angle of projection is

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76°

45°

60°

120°

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