02) A body of mass 50kg is kept on a horizontal surface of coefficient of static friction 0-5. Find the least horizontalforce required to start the motion. If now the body is slightly displaced and the same force continues to act, find theacceleration with which it moves. (Coefficient of kinetic friction is 0- 48)03) Find the least pulling force P which acting at an angle of 45° with the horizontal surface. The coefficient of frictionbetween the two surfaces in contact is 1/3.04) A block of wood of mass 150gms rests on an inclined plane. If the coefficient of static friction is 0-3 find a) thegreatest angle to which the plane may be tilted without the block moving b) the force parallel to the plane, necessaryto prevent slipping when the angle of the plane with the horizontal is 30°.05) A block of mass 2kg slides down an inclined plane, which makes an angle of 30" to the horizontal. If the coefficientof friction is what force should be applied to the block so that the block a) moves down without anyacceleration b) moves up without any acceleration? Caloulr

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Description: 02) A body of mass 50kg is kept on a horizontal surface of coefficient of static friction 0-5. Find the least horizontalforce required to start the motion. If now the body is slightly displaced and the same force continues to act, find theaccelerati

The minimum force required to move the box will be the force required to overcome static friction.…

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02) A body of mass 50kg is kept on a horizontal surface of coefficient of static friction 0-5. Find the least horizontal force required to start the motion. If now the body is slightly displaced and the same force continues to act, find the acceleration with which it moves. (Coefficient of kinetic friction is 0-48) 03) Find the least pulling force P which acti

02) A body of mass 50kg is kept on a horizontal surface of coefficient of static friction 0-5. Find the least horizontal force required to start the motion. If now the body is slightly displaced and the same force continues to act, find the acceleration with which it moves. (Coefficient of kinetic friction is 0-48) 03) Find the least pulling force P which acti

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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The driver of a car of mass 1.00 tonne is travelling on a mobrway at 126 km/h (nearly 80.0 mph), they slam the brakes on b avaid hitting a second vehicle in front of them, which had come to rest because of congestion ahead. After the brakes are applied, a cons tant friction force of 8.00x10' N acts on the car. Ignoring air resistance I) at what minimum distance should the brakes be applied to avoid a collision with the other vehicle? (Hint relate the change in kinetic energy to the work done) (a) 153 m (b) 2.19 m (c) 76.6 m (d) 6 12 m II) If the distance between the vehicles is initially only 30.0 mat what speed would the collision occur? (Hint relate the change in kinetic energy to the work done) (a) 18.8 ms" (b) 27.3 m s (c) 98.3 m s (d) 17.5 m s"
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3.
2) A small block of mass m rests on the rough, sloping side of a triangular block of mass M which itself rest on a horizontal table as shown. (a). Draw a free-body diagram for each of the two obiects. (b) Write out Newton's equations of motion for each object in both r and y coordinates. (c) If the coefficient of static friction between the wedge and the table is 0 and the coefficient of static friction between the block and the wedge is M, determine the horizontal force F applied to M that will cause the small block m to start moving up the incline.
Calculate the largest value of the static friction coefficient which the block slides before toppling.
Analytical mechanics
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m A person is pushing a wooden crate of mass mo = 20 kg at a constant speed vo = 1.2– for Ax = 3 m along a rough horizontal floor that has a coefficient of friction µk = .4.
Shown below is a 9.0-kg block being pushed by a horizontal force F of magnitude 350.0 N. The coefficient of kinetic friction between the two surfaces is 0.4. Find the acceleration of the block when is 27". F— a= 30.24 X 0 E% m