Answered: You are using a lightweight rope to…

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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You are using a lightweight rope to pull a sled along level ground. The sled weighs 435 N, the coefficient of kinetic friction between the sled and the ground is 0.200, the rope is at an angle of 12∘ above the horizontal, and you pull on the rope with a force of 115 N. Find the normal force that the ground exerts on the sled. Find the acceleration of the sled. Is the sled speeding up or slowing down?

Expert Solution

Step 1 Given data

$W = 435 N μ_{k} = . 2 a n d θ = 12 ° F = 115 N$

Normal force (N)

$\sum_{} F_{y} = 0 S o N + 115 \sin (12 °) - 435 = 0 N = 411.09 N$

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