Acceleration is rate of change of
A-Position
B-Time
C-Velocity
D-Speed​

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

Four identical lab carts each have a mass of 200 kg. different masses are added to the carts and the velocities are measured. all carts move to the right.

On mars a rock falls an unknown vertical distance from a resting position and lands in a crater. if it takes the rock 2.5 seconds to fall, how high is the cliff the rock fell from? mars' surface gravity is 3.8 m/s2. a. 9.5 m b. 11.9 m c. 15.2 m d. 23.8 m