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August 1, 2015

Homework Help: Physics

Posted by Tammy on Wednesday, September 26, 2007 at 2:40pm.

A projectile is launched from ground level with an inital velocity of 50 m/s at an angel of 60 degreess aove the horizontal. Use g=10m/s. What is the max height reached by the projectile?

I used change in y=voyt +1/2at^2
=50(2.4) + 1/2(=10) (2.5)^2
=125-31.25
=93.75m

I was just wondering if i did this correctly.

b) What is the vertical component of the final velocity right before the projectile returns to the ground?

I used vy= v sin theda
but my roblem with this is what would v equal to ?

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