Homework Help: physics

Posted by please help on Sunday, December 11, 2011 at 10:13pm.

a. How much power is generated by a motor that lifts a 300.0 kg crate vertically 8.0 meters in 6.0 seconds?

b. If the crate is dropped on a large vertical spring that has a spring constant of 200,000 N/m, how far does it compress the spring?

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