Suppose you throw a ball vertically downward with a speed of 10 m/s. Neglecting air friction, what would be the speed of the ball one second later? A) -9.8 m/s² B) 9.8 m/s² C) 15 m/s D) 19.8 m/s E) 24.8 m/s

Question

Quizplus · Accepted Answer

The speed of the ball one second later can be found by adding the initial speed to the speed gained due to gravity in one second. The acceleration due to gravity is 9.8 m/s^2, so in one second, the ball gains 9.8 m/s of speed. Therefore, the total speed after one second is 10 m/s + 9.8 m/s = 19.8 m/s.

Suppose You Throw a Ball Vertically Downward with a Speed