Question

Calculate the kinetic energy of a 5.0kg object moving at 4.0 m/s

Answer 1

Answer:

The answer is

40 J

Explanation:

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

$KE = \frac{1}{2} m {v}^{2}$

where

m is the mass

v is the velocity

From the question

m = 5 kg

v = 4 m/s

The kinetic energy is

$KE = \frac{1}{2} \times 5 \times {4}^{2} \\ = \frac{1}{2} \times 5 \times 16 \\ = 5 \times 8$

We have the final answer as

40 J

Hope this helps you