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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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

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter5: Newton's Laws Of Motion

Section: Chapter Questions

Problem 76PQ: Jamal and Dayo are lifting a large chest, weighing 207 lb, by using the two rope handles attached to...

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Jamal and Dayo are lifting a large chest, weighing 207 lb, by using the two rope handles attached to either side. As they lift and hold it up so that it is motionless, each handle makes a different angle with respect to the vertical side of the chest (Fig. P5.76). If the angle between Jamals handle and the vertical side is 25.0 and the angle between Dayos handle and the vertical side of the chest is 30.0, what are the tensions in each handle? FIGURE P5.76
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