An object is pushed with twice the work input for twice the time. What do these two simultaneous changes mean for the amount of power required? Explain using the appropriate equation.

A worker pushing a 35.0-kg wooden crate at a constant speed for 13.6 m along a wood floor does 400 J of work by applying a constant horizontal force of magnitude F0 on the crate. (a) Determine the value of F0. ____N (b) If the worker now applies a force greater than F0, describe the subsequent motion of the crate. (c) Describe what would happen to the crate if the applied force is less than F0.

Two people pull a block on a rough horizontal surface. One suggests to use a rope that is inclined at angle 70° and another suggests to use a rope at angle 20°. If they pull for the same horizontal distance with the same strength of force, which person does more work? At the end of the same distance pulled, which block is moving faster? Instead, the surface over which the blocks move is now frictionless. How does this change your answers to the questions above?

Person A and Person B are both using the same amount of work to lift something.  Person A takes half as much time to do it. Using the formula for power, explain which person has the most Power and why.