Academic Integrity: tutoring, explanations, and feedback — we don’t complete graded work or submit on a student’s behalf.

While moving into a new apartment, you tie a rope to an eyelet attached to the s

ID: 2147272 • Letter: W

Question

While moving into a new apartment, you tie a rope to an eyelet attached to the side of a large heavy box with a weight of 906 N, and pull it horizontally across the floor at a constant velocity of 0.25 m/s. The coefficient of kinetic friction between the box and the floor is 0.38. What is the tension in the rope? 60.4 N 225.7 N 344.3 N 688.6 N 906.0 N A 0.110 kg rock is attached to a 1.98 m long string and swung in a horizontal circle at a speed of 29.4 m/s. Find the tension in the string. Neglect gravity. 48.0 N 60.4 N 68.6 N 225.7 N 372.3 N

Explanation / Answer

W = 906

v = 0.25

m*9.81 = 906

mu = 0.38

velocity is constant.

so, acceleration is 0.

T = frictional force

T = mu*W = 0.38*906

T = 344.28 N

(c)