A motorcycle is moving with a velocity of 108km/h and it takes 4s to stop after brakes are applied. Calculate the force exerted by the brakes on the car when mass is 1000kg.
A body of mass 10 kg mass is moving with a velocity of 15 metre per second . When a adore is applied on it , it's velocity becomes 30 metre per second after 10 sec. Calculate the applied force.