An object is moving at 5m/s and a few seconds later it is moving at 3m/s. what had to have happened?

Aparticle initially moving east with a speed of 20.0 m/s, experiences an acceleration of 3.95 m/s, north for a time of 8.00 s. what was the speed of the particle after this acceleration, in units of m/s? give the answer as a positive number.

If the force applied to an object remains constant, is more power needed for the object to move faster ? explain

Holes drilled several kilometers into earth’s crust provide direct evidence about earth’s interior in the form of