If a stone dropped into a well reaches the water's surface after 3.0 seconds, how far did the stone drop before hitting the water? A. 1.4 meters B. 44 meters C. 49 meters D. 54.2 meters

Shelly experiences a backward jolt when the driver starts the school bus. which of the following explains this phenomenon? a. the inertia of shelly b. the inertia of the bus c. the normal force of the seats on shelly d. the net force acting on shelly in a backward direction e. a zero net force acting on shelly

If an inclined plane is 5 m long and 2 m high, what is its mechanical advantage? a. 2.5 b. 3 c. 7 d. 10

How is the gravitational force related to the distance between two objects?