Question

A car's engine generates 100,000 W of power as it exerts a force of 10,000 N. How long does it take the car to

travel 100 m?
(A) 0.1 s
(B) 10 s
C) .001 s
D
1,000 s

Answer 1

Answer is.

(B) 10 seconds

Step-by-step explanation:

A car's engine generates 100,000 W of power as it exerts a force of 10,000 N.

Power = 100,000 W

Force = 10,000 N

We have been give to find out that How long does it take the car to travel 100 m?

Distance or displacement = 100 m

Time = ?

Work done = Force × displacement.

Work done = 10,000 × 100

Work done = 100,000 joules.

Energy is calculated by,

`E = power * time`

`10,000 = 100,000 * t`

`t = (1000,000)/(10,000)`

`t = 10 sec`

Hence it will take 10 seconds for the car to travel 100 m.