Question
6) Mythreyan, a baseball player leads off the game and hits a long home run. The ball leaves the bat at an angle of 70.0o from the horizontal with a velocity of 55.0 m/s.
a. How far will it travel in the air?
b. What is its maximum height?
c. How much time does it spend in the air?
a. How far will it travel in the air?
b. What is its maximum height?
c. How much time does it spend in the air?
Answers
the vertical speed v = 55 sin70° - 9.8t
find t when v=0. That is when the max height occurs
(A) 55 cos70° * t
(B) if hit at height h, then y = h + (55 sin70°)*t - 4.9t^2
(C) solve for y=0
find t when v=0. That is when the max height occurs
(A) 55 cos70° * t
(B) if hit at height h, then y = h + (55 sin70°)*t - 4.9t^2
(C) solve for y=0
A) use 2 t, it also comes down from the peak.
C) is 2 t assuming batter is short
C) is 2 t assuming batter is short