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.
In projectile motion (air resistance neglected), the horizontal component of velocity:
A.
Increases uniformly
B.
Decreases uniformly
C.
Remains constant throughout
D.
Is zero
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ANSWER :
C. Remains constant throughout
8.
During projectile motion (no air resistance), the acceleration of the projectile is:
A.
Zero at maximum height
B.
g downward always
C.
g horizontal always
D.
Zero throughout
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ANSWER :
B. g downward always
9.
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
10.
The path of a projectile (neglecting air resistance) is:
A.
Circular
B.
Parabolic
C.
Elliptical
D.
Straight line
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ANSWER :
B. Parabolic
11.
A projectile is launched with speed v₀ at angle θ with horizontal. Total time of flight is:
A.
v₀sinθ/g
B.
2v₀sinθ/g
C.
v₀cosθ/g
D.
2v₀cosθ/g
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ANSWER :
B. 2v₀sinθ/g
12.
Maximum height reached by a projectile launched at v₀ and angle θ is:
A.
v₀²sin²θ/g
B.
v₀²sin²θ/(2g)
C.
v₀²sinθ/(2g)
D.
v₀²/(2g)
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ANSWER :
B. v₀²sin²θ/(2g)