Question

Q7:
A 4 kg toy is lifted off the ground and falls at 3 m/s. What is the toy's energy?

Answer 1

The toy's energy is 18 J.

Step-by-step explanation:

We have, a 4 kg toy is lifted off the ground and falls at 3 m/s. It is required to find toy's energy.

The toy will have kinetic energy due to its motion. The energy is given by :

`E=(1)/(2)mv^2\\\\E=(1)/(2)* 4* 3^2\\\\E=18\ J`

So, the toy's energy is 18 J.