Question

800 N force was applied to stop a car moving at uniform speed, but the car stopped running at a distance of 12 meters. What happened at this place?​

Answer 1

The amount of work done on the car is 9600 joules

Explanation:

• Certain amount of work is done on the car in order to stop it. Since it was moving with a constant speed as a result of applied force e..g 800N. If we want to stop it, we need to apply the same amount of force.

• So, the work done on the car is

• Work = force x distance

• Work = 800N . 12m

• Work =9600 joules is required to stop it.

Answer 2

⇒ Work = Force • Distance

⇒ Work = 800 • 12

⇒ Work = 9600 Joules