Jumping Lab Question ( Kinematics )

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Homework Statement

a.Standing(Tip Toes) - 0.15m
b.Crouching(As before you jump) - 0.35m
c.At the height of a jump - 0.36m
d.At the bottom of your landing - 0.67

Mass = 75kg

1. Find the initial velocity at "take off" ( remember to use magnitude and direction of your acceleration while you are in the air- use c --> d

2. Find the magnitude and the direction of the average acceleration ( Use b--->c)

3. Find the magnitude and direction of the average acceleration from when you "Touched down" to when you stopped in the crouch position ( use e---> f)

Homework Equations

The Attempt at a Solution

I am new to Physics and i asked my teacher for help but he said he would not answer any questions on this lab?

Can you please help. Maybe explain to me how to do it but I really want to learn.

Thanks!

 

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Anyone?/