Motion in a Straight Line NEET Questions

Physics - Kinematics

Motion in a Straight Line MCQ Questions


7.
Ball thrown upward at 20 m/s from top of 25 m building (g = 10 m/s²). Time to hit ground:
A.
3 s
B.
4 s
C.
5 s
D.
6 s
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ANSWER :
C. 5 s
8.
The slope of position-time (x-t) graph at any instant gives:
A.
Acceleration
B.
Average velocity
C.
Instantaneous velocity
D.
Displacement
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ANSWER :
C. Instantaneous velocity
9.
The area under velocity-time (v-t) graph represents:
A.
Acceleration
B.
Displacement
C.
Speed
D.
Distance
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ANSWER :
B. Displacement
10.
Distance vs time graph for a freely falling body (from rest) is:
A.
Straight line through origin
B.
Parabola opening upward
C.
Parabola opening downward
D.
Straight line not through origin
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ANSWER :
B. Parabola opening upward
11.
Stopping distance of a vehicle ∝ ___ (constant braking deceleration):
A.
Initial velocity
B.
Square of initial velocity
C.
Cube of initial velocity
D.
Square root of initial velocity
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ANSWER :
B. Square of initial velocity
12.
A car at 126 km/h stops within 200 m. Retardation (uniform) is:
A.
3.06 m/s²
B.
6.13 m/s²
C.
5.50 m/s²
D.
7.72 m/s²
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ANSWER :
A. 3.06 m/s²