Question

A cart has a mass of 35kg and a speed of 1.2m/s. What is its kinetic energy

Answer 1

Answer:

The answer is 25.2 J

Explanation:

The kinetic energy of an object 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 we have

$KE = \frac{1}{2} \times 35 \times {1.2}^{2} \\ = 17.5 \times 1.44$

We have the final answer as

25.2 J

Hope this helps you

Answer 2

Answer:

25.2 J

Explanation:

Using the kinetic energy formula:

KE = $\frac{1}{2}$m v²

Plug in the given values:

KE = $\frac{1}{2}$ (35 kg) · (1.2 m/s)²

KE = $\frac{1}{2}$ (35) · 1.44

KE = 17.5 · 1.44

KE = 25.2 J

There is a kinetic energy of 25.2 Joules.