Please help me on projectile motion - Phyiscs.?

Posted on 2015-09-02 12:42:00 in Physics by SYMON

1. a football player kicks a ball with an initial velocity of 18.00m/s at an angle of 32 degrees on the ground. the opponent standing at a distance of 28.00m starts running to meet the ball in its direction. how fast must he run to catch the ball just before it hits the ground?

2. A cannon ball is fired with a muzzle velocity of 300.00 m/s at an angle of 45 degrees
a. what is the maximum horizontal range?
b. where is the ball after 1.20 seconds?
c. what is its velocity after 1.20 seconds?
d. at what height will it go upward?
e. how long will it stay in the air?

3. A bullet has a speed of 450.00 m/s as it leaves a rifle. if its fired horizontally from a cliff 7.50 m above a loake, how far does the bullet travel before striking the water?

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