y = 50sinθ t - 4.9t^2
(A) find t when y=0
(B) use (A) to solve for θ
(C) R = v^2/g sin2θ
A stone propelled from a catapult with a speed of 50ms-1 attains a height of 100cm. Calculate
A. Time of the flight
B. The angle of projection
C. The range attained
1 answer