Question

A ball is moving at a speed of 6.70 m/s. If the kinetic energy of the ball is 3.10 J, what is the mass of the ball?​

Answer 1

0.14 kg

Step-by-step explanation:

The mass of the ball can be found by using the formula

`m = \frac{2k}{ {v}^(2) } \\`

v is the velocity

k is the kinetic energy

From the question we have

`m = \frac{2(3.10)}{ {6.70}^(2) } = (6.20)/(44.89) \\ = 0.138115...`

We have the final answer as

0.14 kg

Hope this helps you