You need to raise a heavy block by pulling it with a massless rope. You can eithera. pull the block straight up height hh, orb. pull it up a long, frictionless plane inclined at a 15 degree angle until its height has increased by h.Assume you will move the block at constant speed either way. Will you do more work in case a or case b or both.   I don't understand why work is the same because I thought work= Fcos theta So technically a should be doing more work but that is not the answer.

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Instantaneous Power

Power is defined in physics as the amount of energy transmitted or transformed per unit time. The watt is the unit of electricity in the International System of Units, equivalent to one joule per second.