Question

A ball is thro.d hit the grouvelocity)?

Answer 1

Answer:

The velocity of the ball is 3.52 m/s.

Explanation:

A projectile is any object that moves under the influence of gravity and momentum only. Examples are; a thrown ball, a fired bullet, a kicked ball, thrown javelin, etc.

Given that the ball was thrown vertically upward on the top of a skyscraper of  height 61.9 m. So that the velocity can be determined by;

      u = $\sqrt{\frac{2H}{g} }$

Where: u is the velocity of the object, H is the height and g is the gravitational force on the object. Given that: H = 61.9 m and g = 10 m/$s^{2}$, then;

 u = $\sqrt{\frac{2*61.9}{10} }$

   = $\sqrt{\frac{123.8}{10} }$

u  = 3.5185

The velocity of the ball is 3.52 m/s.