Question

A golf ball is released from rest from the top of a very tall building. Choose a coordinate system whose origin is at the starting point of the ball, and whose y axis points vertically upward.

The acceleration of gravity is 9.8 m/s^2.

a.Neglecting air resistance, calculate the velocity of the ball after 2.04 s.
Answer in units of m/s.

b.What is the position of the ball after 2.04 s? (Neglect air resistance.)
Answer in units of m.

Answer 1

a. V = Vo + g*t = 0 + 9.8*2.04 = 20 m/s

b. d = 0.5g*t^2 = 4.9*2.04^2 = 20.39 m.
Downward.

Answer 2

Use Henry's Equation, however make your answer negative since gravity is -9.8m/s^2