Question

If a man leans over a cliff and throws a rock upward at 4.9 m/s. Neglecting air resistance, what is the rock's speed one second later?

Answer 1

Please type your <u>subject</u> in the <b>School Subject</b> box. Any other words, including obscure abbreviations, are likely to delay responses from a teacher who knows that subject well.

Answer 2

v1 = velocity one second later
vi = initial velocity of rock = 4.9 m/s
t = time in seconds
g = acceleration due to gravity = -9.8 m/s^2
v1 = vi + gt

Plug the numbers in and solve for v1.

Answer 3

14.7