(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

I need someone to walk me through this problem. I know its a bit lengthy, but my teacher hasn't explained how to do this, and I'm completely stumped.

A ball of mass 0.6 kg, initially at rest, is

kicked directly toward a fence from a point

20 m away, as shown below.

The velocity of the ball as it leaves the

kicker’s foot is 18 m/s at angle of 62 ◦ above

the horizontal. The top of the fence is 9 m

high. The kicker’s foot is in contact with the

ball for 0.06 s. The ball hits nothing while in

flight and air resistance is negligible.

The acceleration due to gravity is 9.8 m/s2.

Determine the time it takes for the ball to

reach the plane of the fence. Answer in units

of s.

Hint: Consider the diameter of the ball to be

negligible.

How far above the top of fence will the ball

pass? Answer in units of m.

What is the vertical component of the velocity

when the ball reaches the plane of the fence?

Answer in units of m/s.

2. Relevant equations

No clue...

3. The attempt at a solution

My teacher just randomly decided to give us this, even though we haven't learned it. And I'm not exaggerating, and therefore I'm completely lost.

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# Homework Help: Stumped on long problem

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