A ball is dropped from rest . the acceleration due to gravity is 10m^-2 and the time it takes for the ball to reach the ground is 5 seconds. What was the velocity of the ball just before it hit the ground?

Acar travels along a highway with a velocity of 24 m/s, west. the car exits the highway; and 4.0 s later, its instantaneous velocity is 16 m/s, 45° north of west. what is the magnitude of the average acceleration of the car during the four-second interval?

Could we see a galaxy that is 20 billion light-years away?

You are standing on a boat. which of the following strategies will make the boat start moving? a. pushing the mast b. throwing some cargo out of the boat c. pushing the front ofthe boat d. pushing another passenger