6A 0225kg mass is being ngne 57 When the mass is at the bo oftt 7 The figure bel

Question

6A 0225kg mass is being ngne 57 When the mass is at the bo oftt 7 The figure below showsto masse coted by ah pe whhs oyo a. Draw free body iagams for each mass 120pn b. Write the sum of the forces for each mass 120 points oving down its eine The picture below shows a 1.35 kg block being pushed up the side of a wall by a350 foce wich is drta 64.2 above the horisontal. The coeficient of kinetic triction between the bocka th w725 a. What is the magnitude of the force of friction on the book? 15p of the acceleration of the block? (10 points

Explanation / Answer

6)given,

m = 0.275 kg ; L = 0.575 m ; v = 1.25 m/s ;

We need to find the tension in the string when it is at the bottom of the circle.

We know that at the bottom of vertical circle:

T(bottom) = mv^2/R + mg

T(bottom) = 0.275 (1.25^2/0.575 + 9.81) = 3.45 N

Hence, T = 3.45 N

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