Need help on this problem W = Eneto A - IEI lArI Cos o°%3DMake sure your result for the work'done on the block by the net force is consistent withyour answer to part c.iii.4. A block is launched up a frictionless ramp, as shown,with initial speed v,. The block travels up the rampand continues across the level section.H.List the forces exerted on the block after it hasbeen launched, as it moves upa.theramp.TheWhich forces, if any, do non-zero work on the block?Which forces, if any, do zero work on the block?b. Write an expression for the net work done on the block from the bottom to the top of theramp. Express your answer in terms of one or more of the following quantities: the weightmg of the block, the angle 0, and the height H of the ramp. Show your work.

Here a block is moving up a frictionless ramp or an inclined plane making an angle of θ with the horizontal. The forces that will be acting on it would be 1) The gravitational force mg acting downwards, where m is the mass of the object and g is the acceleration due to gravity This gravitational force shall have two rectangular components, mg cosθ and mg sinθ, mg sinθ is acting downwards along the inclined plane opposing the initial velocity ν0 2) The applied force due to which the body will move upwards overcoming mg sin θ force 3) The normal reaction force R exerted by the inclined plane itself on the block, The normal reaction force R balances the mg cos θ, R=mg cosθ The forces that are doing non zero work are mg sinθ and the applied force The forces doing zero work are normal reaction force and mg cosθ, they balance each other and cause no displacement in the vertical direction b) as there is no friction, and if we assume that the velocity of the object remained uniform throughout the applied force will be F= mg sin θ Work done = F.→ S→ =mg sinθ S where S is the length of the inclined plane sinθ=HSS=Hsin θ Work done= mg sinθ Hsin θ =mgH Answer: The work done is mgH to move a block along the inclined plane

Science

Physics

4. A block is launched up a frictionless ramp, as shown, with initial speed v. The block travels up the ramp and continues across the level section. List the forces exerted on the block after it has been launched, as it moves up the ramp. a. The Which forces, if any, do non-zero work on the block? Which forces, if any, do zero work on the block? b. Write an expression for the net work done on the block from the bottom to the top of the ramp. Express your answer in terms of one or more of the following quantities: the weight mg of the block, the angle 0, and the height H of the ramp. Show your work.

4. A block is launched up a frictionless ramp, as shown, with initial speed v. The block travels up the ramp and continues across the level section. List the forces exerted on the block after it has been launched, as it moves up the ramp. a. The Which forces, if any, do non-zero work on the block? Which forces, if any, do zero work on the block? b. Write an expression for the net work done on the block from the bottom to the top of the ramp. Express your answer in terms of one or more of the following quantities: the weight mg of the block, the angle 0, and the height H of the ramp. Show your work.

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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