2. a) A 70kg crate is being pulled by a cable on a rough surface as shown in Fig. Q2(a). The crate is initially at rest. i) Solve the speed of the crate as it moves from A to B using the work-energy method and free body diagram. ii) Calculate the distance traveled by the mass before it loses contact with the floor. 25° 1000N 70kg 1m 7m A Hik = 0.2 B 2m

2. a) A 70kg crate is being pulled by a cable on a rough surface as shown in Fig. Q2(a). The crate is initially at rest. i) Solve the speed of the crate as it moves from A to B using the work-energy method and free body diagram. ii) Calculate the distance traveled by the mass before it loses contact with the floor. 25° 1000N 70kg 1m 7m A Hik = 0.2 B 2m

International Edition---engineering Mechanics: Statics, 4th Edition

4th Edition

ISBN:9781305501607

Author:Andrew Pytel And Jaan Kiusalaas

Publisher:Andrew Pytel And Jaan Kiusalaas

Chapter7: Dry Friction

Section: Chapter Questions

Problem 7.78P: The figure shows a steel bar being processed by a rolling mill. Given that P=80kN and r =0.016,...

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