An athlete throws a basketball upward from the ground, giving it speed 9.7 m/s at an angle of 64.0° above the horizontal.
(a) What is the acceleration of the basketball at the highest point in its trajectory?
m/s2
(b) On its way down, the basketball hits the rim of the basket, 3.05 m...
A freely falling object requires 1.10 s to travel the last 20.0 m before it hits the ground. From what height above the ground did it fall? (Ans. in m.)
I am completely lost on modeling this problem. Please help me figure it out.
The height of a helicopter above the ground is given by h = 3.50t^3, where h is in meters and t is in seconds. After 1.85 s, the helicopter releases a small mailbag. How long after its release does the mailbag reach the ground? (Ans. in s.)
(1) y-y0=v0t+1/2*gt^2
(2) v^2=v0^2+2g(y-y0)...