Question

A ball is thro.d hit the grouvelocity)?

Answer 1

The velocity of the ball is 3.52 m/s.

Step-by-step 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{(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{(2*61.9)/(10) }`

=
`\sqrt{(123.8)/(10) }`

u = 3.5185

The velocity of the ball is 3.52 m/s.