JEE PHYSICS UNIT 2: KINEMATICS
QUIZ NO 3
TOTAL QUESTIONS = 20
1. A particle is moving with a constant acceleration of 2 m/s². If its initial velocity is 5 m/s, what is its velocity after 10 seconds?
A. 15 m/s
B. 30 m/s
C. 25 m/s
D. 20 m/s
2. A particle is moving in a straight line with an initial velocity of 5 m/s and an acceleration of 2 m/s². What is its velocity after 3 seconds?
A. 13 m/s
B. 15 m/s
C. 9 m/s
D. 11 m/s
3. A ball is dropped from a height of 10 m. What is its velocity just before it hits the ground? (g = 10 m/s²)
A. 20 m/s
B. 15 m/s
C. 5 m/s
D. 10 m/s
4. A particle moves with uniform acceleration and covers a distance of 15 m in the third second of its motion. What is the acceleration of the particle?
A. 5 m/s²
B. 3 m/s²
C. 2 m/s²
D. 4 m/s²
5. The displacement of a body is given by s = t² + 2t + 1. What is its velocity at t = 2 seconds?
A. 8 m/s
B. 10 m/s
C. 4 m/s
D. 6 m/s
6. A projectile is thrown at an angle of 45° with the horizontal. The range of the projectile depends on which factor?
A. Angle of projection only
B. None of these
C. Both initial velocity and acceleration due to gravity
D. Initial velocity only
7. A particle moves along a straight line with an acceleration of 2 m/s² for 5 seconds, starting from rest. What is the final velocity?
A. 15 m/s
B. 20 m/s
C. 5 m/s
D. 10 m/s
8. A particle moves in a straight line with an initial velocity of 10 m/s and an acceleration of -2 m/s². When will its velocity become zero?
A. 2 s
B. 6 s
C. 5 s
D. 4 s
9. A ball is thrown horizontally with a speed of 10 m/s from the top of a building 20 m high. How far from the base of the building does it hit the ground? (g = 10 m/s²)
A. 40 m
B. 30 m
C. 20 m
D. 10 m
10. The maximum height attained by a projectile is given by which formula?
A. u²cos²θ/2g
B. u²cosθ/2g
C. u²sinθ/2g
D. u²sin²θ/2g
11. A body is dropped from a height of 45 m. How much time will it take to reach the ground? (g = 10 m/s²)
A. 3 s
B. 2 s
C. 5 s
D. 4 s
12. The area under a velocity-time graph represents which quantity?
A. Displacement
B. Acceleration
C. Force
D. Velocity
13. The displacement-time graph of a particle is a straight line with a positive slope. What does this indicate about the motion of the particle?
A. Uniform acceleration
B. Uniform velocity
C. Non-uniform acceleration
D. Uniform retardation
14. A train accelerates from rest at a constant rate of 2 m/s². What is its velocity after 10 seconds?
A. 15 m/s
B. 25 m/s
C. 20 m/s
D. 10 m/s
15. A body is thrown horizontally from a height of 20 m. How far does it travel horizontally before hitting the ground? (g = 10 m/s², horizontal velocity = 5 m/s)
A. 5 m
B. 20 m
C. 15 m
D. 10 m
16. The area under a velocity-time graph represents which physical quantity?
A. Velocity
B. Displacement
C. Force
D. Acceleration
17. A car is moving with a constant speed of 25 m/s. How much distance will it cover in 12 seconds?
A. 300 m
B. 400 m
C. 250 m
D. 200 m
18. A body falls freely from a height h under gravity. What is its velocity just before hitting the ground?
A. √(gh)
B. gh
C. √(2gh)
D. 2gh
19. A particle is moving in a straight line with an acceleration of 2 m/s². If its initial velocity is 5 m/s, what is its velocity after 3 seconds?
A. 13 m/s
B. 11 m/s
C. 10 m/s
D. 12 m/s
20. The slope of a velocity-time graph represents:
A. Acceleration
B. Velocity
C. Displacement
D. Force
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