A water balloon is thrown at 20m/s from the roof of a building 25m high at an angle of 30 degrees below horizontal. At what height above ground wil alloon strike side of another building 20m away from first? 6.9m(adsbygoogle = window.adsbygoogle || []).push({});

A third baseman wishes to throw to first bas, 127 ft distant. His best trhrowing speed is 85 m/hr (g = -32 ft/s). If he throws horizontally 3 ft above the ground, how far from first base will it hit the ground? (1 mi/hr = 1.467 ft/s) 73 ft

and

A rocket is launched form rest and moves in a straight line at 70 degrees above the horizontal with an accel of 46 m/s^2. After 30 s the engines shut off and the rocket free-falls back to earth in a parabolic path. Assume no air resistance.

Find the time of flight. 309s

What is max height. 10500 m

What is distance from launch pad to impact point? 13900

What velocity does rocket hit ground with? 1513 m/s @ -72 degrees

ive tried them all and i just cant get the right answer. this is driving me crazy

**Physics Forums | Science Articles, Homework Help, Discussion**

Dismiss Notice

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Homework Help: Really need help with projectice problems

**Physics Forums | Science Articles, Homework Help, Discussion**