. A weight of 20 N is added to one side of a set of scales at a distance of 0.25

Question

. A weight of 20 N is added to one side of a set of scales at a distance of 0.25 m from the center of the scales. What weight must be added to the other side of the scales if it is added 0.33 m from the pivot point? a. 15.15 N. c. 1.55 N. b. 26.4 N. d. 2.96 N.
. A weight of 20 N is added to one side of a set of scales at a distance of 0.25 m from the center of the scales. What weight must be added to the other side of the scales if it is added 0.33 m from the pivot point? a. 15.15 N. c. 1.55 N. b. 26.4 N. d. 2.96 N.
. A weight of 20 N is added to one side of a set of scales at a distance of 0.25 m from the center of the scales. What weight must be added to the other side of the scales if it is added 0.33 m from the pivot point? a. 15.15 N. c. 1.55 N. b. 26.4 N. d. 2.96 N.

Explanation / Answer

F1 = weight on one side = 20 N

r1 = distance from center = 0.25 m

F2 = weight on other side = ?

r2 = distance from center = 0.33 m

using the equilibrium of torque about the center

F1 r1 = F2 r2

20 x 0.25 = F2 (0.33)

F2 = 15.15 N

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