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1. According to the work-energy theorem, in the absence of friction, if you do 100J of...

1. According to the work-energy theorem, in the absence of friction, if you do 100J of work on a cart (pushing it across a horizontal floor), its kinetic energy will increase by:

a. Somewhat less than 100J

b. 100J

c. Somewhat more than 100J

2. According to the work-energy theorem, in the presence of friction, if you do 100J of work on a cart (pushing it across a horizontal floor), its kinetic energy will increase by:

a. Somewhat less than 100J

b. 100J

c. Somewhat more than 100J

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