Proj Motion EX 11

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Helena Dedic

A projectile fired from the ground has a velocity of 24i -8j m/s at a height of 9.8 m. Find the initial velocity and the maximum height.

Solution:

TOP

We know that and .

We can find the initial velocity in the y-direction using equation 4:





Knowing v_{yo}, we can find the maximum height, H, by setting in equation 4:

 
 
H = 13 m