Friday

September 19, 2014

September 19, 2014

Posted by **Brandon** on Tuesday, March 26, 2013 at 7:38pm.

(a) What is the algebraic expression for the energy that must be supplied by the motor in terms of the length of the rope (L), the mass of the block (M), the angle of release (θ), and the gravitational field strength (g)? [Note: Don't enter an equation like "x=blah". Just enter the "blah" part. All letters are capital except for "g".]

(b) What is the numerical value of the energy that must be supplied by the motor (make sure to include units and put a space between the number and the units)?

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