1. An object slides down an inclined plane of angle 0-40°. There is friction between the block and the plane. a) Draw al

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1 An Object Slides Down An Inclined Plane Of Angle 0 40 There Is Friction Between The Block And The Plane A Draw Al 1 (59.13 KiB) Viewed 38 times

1. An object slides down an inclined plane of angle 0-40°. There is friction between the block and the plane. a) Draw all the forces acting upon the block; b) Write expressions for the work done by each of the forces acting upon the block while the block slides down a distance d-AB. Given: m 5kg; Fk 15N; N=37.5N; d=10m A В' Ans.: W=314.9J; W=0; W₁ =-150J 2. A 5 kg box is being lifted upward with a constant velocity of 2 m/s, by a force. a) Draw the forces acting upon the object as it travels upward; b) Find the magnitude of the lifting force; c) Find the work done by each force acting upon the object in 4s. Ans: Flift 49 N; WF=392 J; Wmg = -392 J 40°