Free Fall and Acceleration Due to GravityPractice Questions & MCQs
Practice Free Fall and Acceleration Due to Gravity questions from Gravitation (Class 9 Science) - important MCQs with answers and step-by-step solutions. Solve the sample questions below, then practice the full set free on the RankByte app.
Free Fall and Acceleration Due to GravityQuiz - Solve & Score
Q1. Taking g = 10 m/s^2, if a stone is released from rest at the edge of a cliff, what speed does it reach after 1 s of free fall?
- A.11 m/s
- B.10 m/s
- C.5 m/s
- D.9 m/s
Answer: B. 10 m/s
Free fall from rest, u = 0. v = u + g t = 0 + 10*1 = 10 m/s. (g = 10 m/s^2.)
Q2. Taking g = 10 m/s^2, if a tennis ball is released from rest at a hovering drone, what speed does it reach after 2.5 s of free fall?
- A.12.5 m/s
- B.13.5 m/s
- C.62.5 m/s
- D.25 m/s
Answer: D. 25 m/s
Free fall from rest, u = 0. v = u + g t = 0 + 10*2.5 = 25 m/s. (g = 10 m/s^2.)
Q3. Taking g = 10 m/s^2, if an iron bolt is released from rest at a tall building, what speed does it reach after 0.5 s of free fall?
- A.2.5 m/s
- B.5 m/s
- C.10.5 m/s
- D.3.5 m/s
Answer: B. 5 m/s
Free fall from rest, u = 0. v = u + g t = 0 + 10*0.5 = 5 m/s. (g = 10 m/s^2.)
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