Question

A soft ball is on a table 2.4 m above the ground .what is the mass of the soft bal l if it has a P.E of 568 Joule​

Answer 1

Mass of the ball = 24.15 kg

Explanation

Given:

Height of ball from the ground, h = 2.4 m

Potential energy of the ball, PE = 568 J

To find:

Mass of the ball, m =?

Formula required:

Formula for the potential energy 'PE' of a body will mass 'm', height of the body from the ground 'h', and acceleration due to gravity 'g!

PE = mgh

Solution:

Using the formula for Potential energy

- PE = mgh

[ taking g = 9.8 m/s? ]

» 568 = m x 9.8 x 2.4

- m = 568 / (9.8 x 2.4)

→ m = 24.15 kg [Approx.]

Therefore,

Mass of the ball is 24.15 kg approximately.

Answer 2

Answer:

Refer to the attachment

Explanation:

Hope it helps