A 100 quintal freight car running freely at `10 km h^(-1)` collides with and is coupled to a 70 quintal car originally at rest.Find the speed with which the cars move after collision.

A car travels 4 km in 3 minutes. Find the speed of car in cms^-1

A horse runs along a circle with a speed of 20k m//h . A lantern is at the centre of the circle. A fence is along the tangent to the circle at the point at which the horse starts. Find the speed with which the shadow of the horse moves along the fence at the moment when it covers 1/8 of the circle in km/h.

A railway carriage of mass 9,000 kg moving with a speed of 36 km h^-1 strikes a stationary carriage of same mass. After the collision, the carriages get coupled and move together. what is their common speed after collision? Is the collision elastic?

A car travels 90 km in 2 1/2 hour. Find the distance covered in 2 hours with the same speed.

A car is moving at a speed of 18 km . It starts retarding uniformly at 1m/s and cover to rest. Find the distance travelled.

A car is moving with a speed of 30 m/s. Find the distance covered by the car in 1 minute.