2 Answers

Brownish Monster · Answer 1 · 2021-03-18T21:18:51+0000

Answer:

The answer is 243 J

Step-by-step explanation:

The kinetic energy of an object given it's mass and velocity can be found by using the formula

$KE = (1)/(2) m {v}^(2) \\$

where

m is the mass

v is the velocity

From the question

m = 54 kg

v = 3 m/s

The kinetic energy is

$KE = (1)/(2) * 54 * {3}^(2) \\ = 27 * 9 \\ = 243 \: \: \: \: \:$

We have the final answer as

Hope this helps you