(adsbygoogle = window.adsbygoogle || []).push({}); Help on projectile motion problems plz?

Someone who is 1.6m tall throws a ball 41 deg above the horizontal at 9.4m/s.

A) How far away from the person will the ball land?

B) How long will it be in the air?

C) What is the ball's maximum height?

Formulas:

df = di + vi(t) + .5(a)(t^2)

others?

Attempt:

Velocity of the ball in the y = 9.4(sin41) = 6.167m/s

Time: 0 = 6.167 + (-9.8)(t); t = 0.63s

Max vertical distance = 0 + (6.167)(.63) + .5(9.8)(.63^2) = 5.83002

Is this right? I don't know if I did any of that right, and I don't know how to do the rest of the problem.

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# Homework Help: Help on projectile motion problems ?

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