Question

car is moving with a uniform velocity of 50m/s. it is stopped in 5 seconds by applying a force of 1000 N through the brakes. (a) Find change in momentum of the car (b) retardation of the car (c) Mass of the car. (ii) Write down the condition for F=ma equation holds good. (iii) Draw graph between m - a when force on the body is constant. ​

Answer 1

Explanation:

Note that the static friction force acting on the front wheels is the force that accelerates the car forward