Question

a ball thrown vertically upwards with a speed of 19.6ms-1from the top of a tower returns to the earth in6s find the height of the tower?​

Answer 1

Answer:

Explanation:

The ball is thrown upwards with velocity 19.6 m/s. During the upward motion it experiences -9.8 m/s² acceleration due to which it comes to rest momentarily at the highest point in air. We can calculate the time taken to reach the heighest point. So the ball reaches the topmost point in air in 2 seconds.