Homework Help: Physics

Posted by Matthew on Sunday, October 18, 2009 at 12:46pm.

When you lift a ball with a force of 82N, the ball accelerates upward with an acceleration of a. If you lift with a force of 92N, the balls acceleration is 2a. Find the weight of the ball, and the acceleration a.

I tried solving this via substitution algebra, but the answer still didnt work, PLEASE help!!!!

Physics - bobpursley, Sunday, October 18, 2009 at 12:48pm
force=m(a+g)
force1=m(a1+g)

force1-force=m(a1-a)
10N=ma)
m=10/a
and theweight then is mg or 10g/a
Physics - Matthew, Sunday, October 18, 2009 at 12:53pm
I think the 2a is meant to be 2 * a
Physics - bobpursley, Sunday, October 18, 2009 at 3:08pm
10=2ma
m= 5/a
sorry.

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