Note: zero air resistance for this problem.
A home run is hit and the ball lands in the seats at a height of 7.5m above the point at which it was hit. The ball had a velocity of 36m/s at 28deg above the horizontal as it left the bat.
a) What max height did ball reach?
b) How long did ball spend in the air?
c) How far did it travel horizontally?
d) What was the smallest speed the ball had during its flight?
Vf^2 = Vi^2 + 2ad
d= Vit + 1/2at^2
The Attempt at a Solution
I got these answers
d) at the top of its trajectory speed was 0m/s
Could anyone please tell me if these numbers are right? And whatever ones are wrong please give me some hints to solve? Thank you.