Question

#(c) none of the above

1. six seconds after starting from rest, a freely - falling baseball has a speed of

(a) 10 m/s.
(b) 30 m/s.
(c) 60 m/s.
(d) 70 m/s.
(e) none of the above

Explanation:

Step1: Recall free - fall formula

The formula for the velocity of a freely - falling object starting from rest is $v = gt$, where $v$ is the final velocity, $g$ is the acceleration due to gravity ($g\approx10\ m/s^{2}$) and $t$ is the time.

Step2: Substitute values

Given $t = 6\ s$ and $g = 10\ m/s^{2}$, we substitute into the formula: $v=10\times6$.
$v = 60\ m/s$

Answer:

(c) 60 m/s