A roller coaster starts from rest at the top of a 90 m hill. How fast will it be going at the
bottom of the hill, if there is no friction? Use Conservation of Energy GPE = KE to solve

Often called simply "velocity," this is the velocity of an object at a particular moment in time.

Two pans of a balance are 24.1 cm apart. the fulcrum of the balance has been shifted 1.33 cm away from the center by a dishonest shopkeeper. by what percentage is the true weight of the goods being marked up by the shopkeeper? assume the balance has negligible mass. answer in units of %.

An object dropped from cliff falls with a constant acceleration of 10 metre per second square find its speed of two seconds after it was dropped