Physics, 10.03.2020 17:50 minnie7760

A ball is thrown straight up from the surface of the earth and travels along a parabolic path before it hits the ground.
Which of the following statements is true concerning the ball if air resistance is neglected?

a. The acceleration of the ball points downward as the ball moves upward.
b. The acceleration of the ball is zero when the ball is at its highest point in the arc.
c. The speed of the ball is negative as it rises.
d. The velocity and acceleration of the ball always point in the same direction
e. The instantaneous velocity of the ball is the same throughout the ball’s flight.

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