NCERT Exercise 8.1 — Q7 - Motion
Question: A ball is gently dropped from a height of 20 m. If its velocity increases uniformly at the rate of 10 m s⁻², with what velocity will it strike the ground? After what time will it strike the ground?
Answer: The ball strikes the ground with a velocity of **20 m s⁻¹** after a time of **2 seconds**.
Full step-by-step NCERT solution with diagrams on Something by Zero.