Khufra works at a spring factory and he was assigned to test a certain spring, whose constant is 45 N/m, attached to a 15-kg block in an incline (= 49°). With the spring initially at equilibrium position, the block was pushed 0.5 meters up the incline by a 32-N external force applied parallel to the path. If the coefficient of kinetic friction is 0.3, determine the normal force (in Newtons). Use g = 9.81 m/s²

Khufra works at a spring factory and he was assigned to test a certain spring, whose constant is 45 N/m, attached to a 15-kg block in an incline (= 49°). With the spring initially at equilibrium position, the block was pushed 0.5 meters up the incline by a 32-N external force applied parallel to the path. If the coefficient of kinetic friction is 0.3, determine the normal force (in Newtons). Use g = 9.81 m/s²

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 44PQ: A student working on a school project modeled a trampoline as a spring obeying Hookes law and...

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