A rock is dropped from a bridge. What happens
to the magnitude of the acceleration and the
speed of the rock as it falls? [Neglect friction.]
(1) Both acceleration and speed increase.
(2) Both acceleration and speed remain the
same.
(3) Acceleration increases and speed decreases.
(4) Acceleration remains the same and speed
increases.
When a rock is dropped from a bridge in this way, in terms of the magnitude of the acceleration and the speed of the rock as it falls, the best option is "(1) Both acceleration and speed increase."
