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brunettegurl
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final velocity of a ball pushed by compressed air..pls. help!
Compressed air is used to fire a 1.72 kg ball vertically upward from a 1.50 m long
tube. The air exerts a upward force of 28.7 N on the ball as long as it is in the tube.
With what velocity does the ball leave the top of the tube?
F=ma
V12 = v02+2ad
so i used the given mass and force to get an acceleration. then using the acceleration i plugged it into the second equation assuming vinitial to be zero and my asnwer is coming out wrong can someone point me in the right direction thanks
Homework Statement
Compressed air is used to fire a 1.72 kg ball vertically upward from a 1.50 m long
tube. The air exerts a upward force of 28.7 N on the ball as long as it is in the tube.
With what velocity does the ball leave the top of the tube?
Homework Equations
F=ma
V12 = v02+2ad
The Attempt at a Solution
so i used the given mass and force to get an acceleration. then using the acceleration i plugged it into the second equation assuming vinitial to be zero and my asnwer is coming out wrong can someone point me in the right direction thanks