Question

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

Answer 1

Answer: 10 s

Step-by-step explanation:

Given

Engine generates
`100,000\ W` power

Force exerts
`F=10,000\ N`

Distance traveled
`d=100\ m`

work done is given by

`W=F\cdot d\\W=10,000* 100\\W=10^5\ J`

Also, Energy is given as

`\Rightarrow E=P\cdot t`

Insert the values

`\Rightarrow 10^6=100,000* t\\\\\Rightarrow t=(10^6)/(10^5)\\\\\Rightarrow t=10\ s`