NEET 2021 Physics question
A car starts from rest and accelerates at 5 m/s. At t = 4 s, a ball is dropped out of a window by a person sitting in the car. What is the velocity and acceleration of the ball at t = 6 s? (Take g = 10 m/s)
Answer: (D)
Solution
Horizontal speed 20 m/s; after 2 s vertical speed 20 m/s: m/s with acceleration g.