Please do not put your response in a .pdf format, but Word documents are okay. Thanks!
(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 Preview
Hello and thank you for posting your question to Brainmass! ...
Solution Summary
The solution describes how to find Work and power that are generated due to a force.
... overcome these forces, a pulling force is required. Work done on a body by a force F = W = FS where S = Displacement of the body. Rate of doing work is power P ...
... A step by step solution provided for work, energy and power problems given ... Only forces acting on the jumper are the gravity and the elastic force of the ...
... 1. Two forces produce the same torgue. ... of work done for the two engines is not same, work done by ... Problem 38 : Power = Force x Speed or Speed = Power/Force. ...
... a. We know that W = force x distance Using the above formula, the force required to ... b. Power = work/time When time = 10 seconds Power = work/10 When time = 20 ...
... of twenty questions related to work, energy, power, simple pendulum, electricity, electric power, gravitational potential ... 1. A force of 7.2 N acting on a ...
... If this doesn't work, the organization will decline ... balance of power is not correctly working, opposing groups ... believe in others who they have worked with so ...
... 4) a 2.0 kg block is pushed up against a spring whose force constant is 700N/m, compressing it ... The expert examines the work, energy and power of objects ...
... How does this work? ... Coercive power can mean that the person can persuade, usually by force or withholding something the other parties may need. ...
...power of the engine, P = W/t (work done/time ... PART 2: If velocity is constant, Power (P) = Torque (T) * angular velocity (w) Torque(T) = friction force (f) * R ...
... role is important because it gives the employee more power. ... employment such as: benefits, job security, working conditions ... and their ability to bring work to a ...
