Question

An acorn falls from a tree. How fast is the acorn moving after 1.2 seconds?

Answer 1

So 11.8?

Answer 2

Yes, your answer is correct. The governing equation is:\[v _{_{f}}=v _{O}+at\]where vf is the final velocity; vO is the starting velocity; a is acceleration; and t is time.

Answer 3

using eqn.

v = u + at
thus, v = 0 + 9.8 * 1.2 = 11.76 m/s