When you toss a coin straight up,it moves upward,turns around,and drops.During all this time the acceleration of the coin is
A)upward and constant.
B)downward and constant.
C)first decreasing,then increasing.
D)zero throughout its up and down motion.

Question

Quizplus · Accepted Answer

When the coin is moving upward, the acceleration is in the opposite direction of the gravitational force acting on it, so it is slowing down. At the highest point, the velocity becomes zero and then the coin starts to fall down. During this downward motion, the acceleration is in the same direction as the gravitational force, so it is constant and equal to the acceleration due to gravity (g). Therefore, the correct answer is that the acceleration of the coin is downward and constant.

When You Toss a Coin Straight Up,it Moves Upward,turns Around,and