A car moving on a plane surface applies breaks to reduce it's speed from 10m/s to 5m/s The mass - Science - Work and Energy

Question

A car moving on a plane surface applies breaks to reduce it's speed
from 10m/s to 5m/s The mass of the vehicle is 150g Find the work
done by brakes

Anshu Agrawal · Accepted Answer

Dear student,

According to work energy theorem,Work done = change in K
E W=12×m×(102-52)W=12×150×75W=5625J

Regards

A car moving on a plane surface applies breaks to reduce it's speed from 10m/s to 5m/s. The mass of the vehicle is 150g. Find the work done by brakes