Question : A man throws a ball vertically upward and it rises through 20 π and returns to his hands. What was the initial velocity (π’) of the ball and for how much time (π) it remained in the air [π = 10π/π 2 ]
(A) π’ = 10π/π ,π = 2π
(B) π’ = 10π/π ,π = 4π
(C) π’ = 20π/π ,π = 2π
(D) π’ = 20π/π ,π = 4s
Answer : option (D)
Solution :
![A man throws a ball vertically upward and it rises through 20 π and returns to his hands. What was the initial velocity (π’) of the ball and for how much time (π) it remained in the air [π = 10π/π 2 ]](https://i0.wp.com/ezeenotes.in/wp-content/uploads/2022/04/372.png?resize=447%2C77&ssl=1)