A car with mass 450 kg has a kinetic energy of 16,256 j. What is the speed of the car?

Question

asked Sep 6, 2018 5.1k views

2 Answers

Coelacanth · Answer 1 · 2018-09-12T20:57:39+0000

Answer:

Speed of the car is 8.49 m/s

Step-by-step explanation:

It is given that,

Mass of the car, m = 450 kg

Kinetic energy of the car, E = 16256 J

We need to find the speed of the car. The kinetic energy of the car is given by :

E=(1)/(2)mv^2

$v=\sqrt{(2E)/(m)}$

$v=\sqrt{(2* 16256\ J)/(450\ kg)}$

v = 8.49 m/s

So, the speed of the car is 8.49 m/s. Hence, this is the required solution.