Question

A 0.4 kg ball is thrown straight up into the air with a velocity of 12.2 m/s. What maximum height will it reach?

Answer 1

Maximum height is 7.59 m.

Step-by-step explanation:

We have,

Mass of a ball is 0.4 kg

It is thrown straight up into the air with a velocity of 12.2 m/s.

It is required to find the maximum height reached by the ball.

Concept used : Law of conservation of energy.

Solution,

Here, the energy of the ball remains conserved. Let h is the maximum height reached by the ball such that,

`(1)/(2)mv^2=mgh\\\\h=(v^2)/(2g)\\\\h=((12.2)^2)/(2* 9.8)\\\\h=7.59\ m`

So, the maximum height reached by the ball is 7.59 m.