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September 23, 2014

Homework Help: Physics - 2-D kinematics

Posted by Anonymous on Friday, February 3, 2012 at 4:37pm.

A soccer ball is kicked with an initial horizontal velocity of 20 m/s and an initial vertical velocity of 16 m/s.

I've calculated:

Initial Speed: 25.61 m/s
Angle: 38.66 degrees
Maximum Height it reaches: 13.06 m
Distance kicked: 65.29m

NOW I NEED:

What is the speed of the ball 0.7 seconds after it was kicked?

How high above the ground is the ball 0.7 seconds after it is kicked?

help? please.

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