Solve Bowling Ball Weight & Acceleration: 82 N & 99 N Forces

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When lifting a bowling ball with a force of 82 N, the ball accelerates upward with an acceleration a, while lifting with 99 N results in an acceleration of 8a. The weight of the bowling ball is calculated to be 78.48 N. To determine the acceleration a, the net force must be considered, which involves subtracting the weight of the ball from the applied force. The correct calculation for acceleration should reflect this net force, leading to a different result than simply dividing the applied force by mass. Understanding the net force is crucial for accurately solving the problem.
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When you lift a bowling ball with a force of 82 N, the ball accelerates upward with an acceleration a. If you lift with a force of 99 N, the ball's acceleration is 8 x a.
(a) Find the weight of the bowling ball.
N
(b) Find the acceleration a.
m/s2


Ok, i found part (a), which is 78.48 N. Now, on part (b) why wouldn't the acceleration be 99 N/ 8 kg, which is 12.37 m/s2? :confused:
 
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What's the net force on the ball?
 
Did you forget that you have to lift with the weight of the ball just to get it moving at all? The force in "F= ma" is 99N- mg.

As usual, Doc Al got there before me!
 

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