A train is travelling at a speed of 90 km h-¹. Brakes are applied
so as to produce a uniform
acceleration of - 0.5 m s-². Find
how far the train will go before it
is brought to rest.​

An athlete is holding 24 lb of weights at a height of 6 inches above the stack as shown. to lower the weights, she applies a constant force of 5 lb to the handle. determine the velocity of the weights immediately before they hit the stack.

By what factor does the drag force on a car increase as it goes from 65 to 110 km/h?

A1000-kg car is moving at 30 m/s around a horizontal unbanked curve whose diameter is 0.20 km. what is the magnitude of the friction force required to keep the car from sliding?