Question

A force of 800 N was applied to stop a car that was moving with a constant velocity. The car stopped after moving 12 meters. How much work is the work done?​

Answer 1

Explanation:

F=800N

S=12m

W=(F)(S)

=800(12)

=9600N.M

Answer 2

A force of 800 N was applied to stop a car that was moving with a constant velocity. The car stopped after moving 12 meters then the work done by the force to stop the car is 9600 J

Explanation:

Given: Force F = 800 N

Distance s = 12 m

To find: Work done by force to stop the car

Solution,

Work done is given by the force and displacement in the direction of force.

Therefore the displacement is opposite to the direction of force.

So we have to taken its value as negative.

Work done is given as,

W = F × S

W = 800 N × - 12 m

W = 9600 joule

Final answer:

Work done by the force to stop the car is 9600 J

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