contestada

A bowling ball leaves a bowler's hand. An accelerometer inside the ball reads zero. Which of the following best describes what happens to the ball?

A. The ball speeds up.

B. The ball moves at a constant speed.

C. The ball curves toward the gutter.

D. The ball slows down.

Not quite sure what this means :( Thanks!! @perl :)

Respuesta :

Acceleration is the change in velocity, so if there is zero acceleration, the ball's speed and direction are constant. Therefore, the only plausible answer to our question is B. This is because the ball's speed stays the same, and its direction is also constant.