Homework Help: physics

Posted by Sam on Monday, October 18, 2010 at 2:20pm.

A particle moves along a straight path through displacement i = (2.2 m) + c while force = (3.2 N) - (3.8 N) acts on it. (Other forces also act on the particle.) What is the value of c if the work done by on the particle is (a) zero, (b) 3.2 J, and (c) -7.3 J?

physics - bobpursley, Monday, October 18, 2010 at 3:21pm
I assume you have vector displacement andforces.

work=force dot displacement=3.2*2.2-3.8*c

solve for c.I will do one. If work 7.3J

7.3=7.04-3.8c
.26=3.8c
c=14.6

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