Homework Help: Physics

Posted by Brian on Wednesday, February 13, 2013 at 11:42pm.

A cannon is mounted on a truck that moves forward at a speed of 5 m/s. The operator wants to launch a ball from a cannon so the ball goes as far as possible before hitting the level surface. The muzzle velocity of the cannon is 50 m/s. What angle from the horizontal should the operator point the cannon?

Physics - Del, Wednesday, February 13, 2013 at 11:49pm
A ball is dropped from rest from 10 m above ground. The speed of the ball in the middle of trip to ground is close to
Answer

14 m/s

10 m/s

can't be determined because mass is not given

100 m/s

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