Question

by the end of the ride the car only has 1,000,000 j of energy left that the brakes must remove in order to safely stop the car. if the car only has 23 m for the bakes to do 1,000,000 j of work find the force the brakes must apply.

w=fd

f = 43,478 n

f = 23 n

f = 1,000,000 j

f = 959,977 n

Explanation:

Step1: Rearrange the work formula

Given \(W = Fd\), we can solve for \(F\) by \(F=\frac{W}{d}\).

Step2: Substitute the values

We know \(W = 1000000\space J\) and \(d = 23\space m\). Then \(F=\frac{1000000}{23}\space N\approx43478\space N\).

Answer:

\(F = 43478\space N\)