Question

A grasshopper jumps at a 65.0° angle at 5.42 m/s. At what time does it reach its maximum height? (Unit = s)​

Answer 1

Vy = V sin θ = 5.42 m/s * .907 = 4.91 m/s initial vertical speed

Vy = a t = 0 at time it reaches maximum height

t = 4.91 m/s / 9.80 m/s^2 = .501 time to reach maximum height