How long does it take to reach its highest point Answer in u

How long does it take to reach its highest point? Answer in units of s. What is velocity when it returns to the level from which it started? ans. m/s

A ball is thrown vertically upward with a speed of 26.3 m/s.

The ball reaches its highest point when the velocity becomes 0 under the influence of gravity.

Therefore time taken to reach highest point = (initial velocity)/acceleration

= 26.3/9.81 = 2.6809 seconds.

The velocity when it returns to the original is point is exactly equal and opposite of initial velocity.

Thus velocity when ball returns to starting point = -26.3 m/s