Asked by Daniel

a ball is projected up ward at an angle of 37 degree from the horizontal with an initial velocity of 20 m/s from 12.8m high building find.time of flight,velocity and the height of the ball at t=3s and the range of the ball
Answered by oobleck
h(t) = 12.8 + 20 sin37° t - 4.9t^2
find h(3)

find t when h=0, and then the range is just
20 cos37° * t
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