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(A) A sled of mass m is being pulled horizontally by a constant horizontal force of magnitude F. The coefficient of kinetic friction is mu_k. During time interval t, the sled moves a distance s, starting from rest. Find the average power Pavg created by the force F. Express your answer in terms of the given quantities and, if necessary, appropriate constants. You may or may not use all of the given quantities.
(B) A sled is being pulled along a horizontal surface by a force vector F of magnitude 600 N. The force makes an angle of 60 with the direction of the sled's velocity. Starting from rest, the sled speeds up with acceleration 0.08 m/s^2 for 1 minute. Find the instantaneous power P created by the normal force at t=10 s. The magnitude of the acceleration due to gravity is g=9.8 m/s^2. Express your answer in watts to three significant figures.
Solution Summary
The solution describes how to find Work and power that are generated due to a force.
... energy (as there in on non-conservative force) Gain in ... deliver, on average, 1500 hp of power during this ... 318500000 + 90591242.28 =4.09*108 J The work done by ...
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... we've already calculated the two forces acting on ... by finding the instantaneous velocity: remember that power = work / time, and work = force times distance ...
... Using the above formula, the force required to push across the lawnmower is almost the same and also the yard size is the same so work done ...Power = work/time. ...
... their units and their enemies - was going to work. ... aerial bombardment, continued execution of fire-power and tactics ... He had the task of working the opinionated ...
... response calculates the work done by kinetic friction during the oscillation of a mass on a spring and the average power dissipated by the force of kinetic ...
... If the average frictional force experienced by the car is ... is 3.0 kg, find the average power delivered to ...Work and Energy Review Problems (Answers are at the ...
