A car accelerates from a velocity of 20 m/s in 5 seconds. What is the initial velocity of the car

When the velocity of an object is doubled, by what factor is its momentum changed? by what factor is its kinetic energy changed? a) the momentum is zero. b) the momentum is not zero. c) difficult to say.

Aregion of space in which a measurable gravitational force is indicated by the force exerted on a test mass is called

Eddy whose mass is 55kg climbs up the 1.50 meter high stairs in 2s.calculate eddy’s power rating