Question

A medicine ball has a mass of 6 kg and is thrown with a speed of 4 m/s. What is its kinetic energy?

(24 j ) (48 J )(96 j )( 12j )
none of these​

Answer 1

`\boxed{\sf Kinetic \ energy \ (KE) = 48 \ J}`

Given:

Mass (m) = 6 kg

Speed (v) = 4 m/s

To Find:

Kinetic energy (KE)

Step-by-step explanation:

Formula:

`\boxed{ \bold{\sf KE = (1)/(2) m {v}^(2) }}`

Substituting values of m & v in the equation:

`\sf \implies KE = (1)/(2) * 6 * {4}^(2)`

`\sf \implies KE = \frac{1}{ \cancel{2}} * \cancel{2} * 3 * 16`

`\sf \implies KE =3 * 16`

`\sf \implies KE = 48 \: J`