NEET Physics: Kinematics — Practice Set 20

Q1. A man walking at \( 4 \, \text{m/s} \) throws a ball forward at \( 12 \, \text{m/s} \) relative to himself. If the ball lands \( 10 \, \text{m} \) ahead of the throw point, how long was it in the air? (Take \( g = 10 \, \text{m/s}^2 \))

Q2. A rocket accelerates from rest at \( 4 \, \text{m/s}^2 \) for \( 6 \, \text{s} \), then moves at constant speed for \( 5 \, \text{s} \). What is the total distance covered?

Q3. A car accelerates from rest at \( 2.5 \, \text{m/s}^2 \) until it reaches \( 25 \, \text{m/s} \), then immediately decelerates at \( 5 \, \text{m/s}^2 \) to rest. What is the total time taken?

Q4. A car accelerates from rest at \( 3 \, \text{m/s}^2 \) for \( 4 \, \text{s} \), then moves at constant speed for \( 6 \, \text{s} \), and decelerates to rest at \( 2 \, \text{m/s}^2 \). What is the total distance?

Q5. A ball is thrown upwards at \( 45 \, \text{m/s} \) from a \( 30 \, \text{m} \) tower. What is the time taken to reach a point \( 15 \, \text{m} \) above the ground? (Take \( g = 10 \, \text{m/s}^2 \))

Q6. A drone ascends vertically at \( 5 \, \text{m/s} \) for \( 8 \, \text{s} \), then releases a payload that hits the ground \( 6 \, \text{s} \) later. What was the initial height of the drone above the ground? (Take \( g = 10 \, \text{m/s}^2 \))

Q7. An elevator ascends at \( 3 \, \text{m/s} \) for \( 5 \, \text{s} \), then accelerates at \( 2 \, \text{m/s}^2 \) for \( 3 \, \text{s} \). A ball is dropped at the end of this period. What is the time taken for the ball to hit the ground if the initial height was \( 20 \, \text{m} \)? (Take \( g = 10 \, \text{m/s}^2 \))

Q8. A ball is thrown vertically upwards with an initial velocity of \( 10 \, \text{m/s} \). What is the total time of flight? (Take \( g = 10 \, \text{m/s}^2 \))

Q9. A rocket descends at \( 8 \, \text{m/s} \) from a height of \( 120 \, \text{m} \) and releases a payload \( 3 \, \text{s} \) later. How long does the payload take to hit the ground? (Take \( g = 10 \, \text{m/s}^2 \))

Q10. A body accelerates uniformly from \( 8 \, \text{m/s} \) to \( 16 \, \text{m/s} \) in \( 4 \, \text{s} \). What is the distance traveled?

Physics — Kinematics

Set 20 of 21

15:00

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1Question 1 of 10
Medium

A man walking at \( 4 \, \text{m/s} \) throws a ball forward at \( 12 \, \text{m/s} \) relative to himself. If the ball lands \( 10 \, \text{m} \) ahead of the throw point, how long was it in the air? (Take \( g = 10 \, \text{m/s}^2 \))