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

Question

asked Jan 5, 2021 157k views

1 Answer

Johnpyp · Answer 1 · 2021-01-10T21:59:13+0000

Answer:

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

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:

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

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

$\sf \implies KE =3 * 16$

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