When the stone is moving upward in the sky, its acceleration is: a) zero b) pointed upwards c) changes direction from upwards to downwards d) pointed downwards

The velocity-time leftward-moving table represents the motion of a car. What is the magnitude and direction of the car's acceleration? Time (s) 0.0 1.0 2.0 3.0 4.0 Magnitude: Direction: Velocity (m/s) 26.0, left 20.0, left 14.0, left 8.0, left 2.0, left

You shoot an arrow into the air at an initial velocity of 22.5 m/s at an angle of 40 degrees. a) Find the maximum height the arrow reaches in the air. b) Find the time it takes to reach its maximum height. c) Find the time it takes to hit the ground. Assume its flight in the air is symmetrical, with the first half of flight traveling upward, and the 2nd half of the flight traveling downward. Assume no air resistance. d) Find how far away it hits the ground.

A ball is thrown vertically upwards from the ground at a speed of 15.0 m/s. At what time/s will it be at a height of 4.00 m (in seconds)     hint: there will be two answers. Type both in the box (in seconds)