Motion in a Plane, Projectile Motion and Uniform Circular Motion NEET Questions

Physics - Kinematics

Motion in a Plane, Projectile Motion and Uniform Circular Motion MCQ Questions


7.
The time of flight of a projectile is independent of?
A.
Initial speed
B.
Launch angle
C.
Gravity
D.
None of the above
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ANSWER :
C. Gravity
8.
The maximum height attained by a projectile is?
A.
u²/g
B.
u²/2g
C.
u²/4g
D.
u²/3g
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ANSWER :
B. u²/2g
9.
A projectile is thrown at an angle θ with initial velocity u. The time to reach maximum height is?
A.
u/g
B.
u²/g
C.
u/g sinθ
D.
u sinθ/g
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ANSWER :
D. u sinθ/g
10.
The horizontal range of a projectile is zero when the angle of projection is?
A.
45°
B.
60°
C.
90°
D.
0°
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ANSWER :
C. 90°
11.
The maximum height of a projectile is reached when its?
A.
Speed is maximum
B.
Vertical velocity is zero
C.
Horizontal velocity is zero
D.
Total velocity is zero
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ANSWER :
B. Vertical velocity is zero
12.
In the given figure, a=15 m/s2 represents the total acceleration of a particle moving in the clockwise direction in a circle of radius R=2.5 m at a given instant of time. The speed of the particle is:

NEET - 2016

A.
4.5 m/s
B.
5.0 m/s
C.
5.7 m/s
D.
6.2 m/s
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ANSWER :
C. 5.7 m/s