Pharmacy Technician job x C Physics question l Chegg x Assignment 8: Rotational

Question

Pharmacy Technician job x C Physics question l Chegg x Assignment 8: Rotational x C www.webassign ne 15467742 t/web/Student/Assignment-Responses/last?dep 5. -13 points SerCP10 7.P. 027. My Notes Ask Your Teacher An air puck of mass m 0.30 kg is tied to a string and allowed to revolve in a circle of radius R 1.3 m on a frictionless horizontal table. The other end of the string passes through a hole in the center of the table, and a mass of m 1.3 kg is tied to it see the figure below). The suspended mass remains in equilibrium while the puck on the tabletop (a) What is the tension in the string? (b) What is the horizontal force acting on the puck? (c) What is the speed of the puck? m/s Need Help? Read It -13 points SerCP10 7.F.037.Wi My Notes Ask Your Teacher 0:00 AM 35/2017

Explanation / Answer

A) tension in the string is T = m2*g = 1.3*9.8
T = 12.74 N

B) Horizontal force acting on the puck is F = Tension = 12.74 N

C) But this Tension is equal to centripetal force

T= m1*v^2/R

12.74 = 0.3*v^2/1.3

speed is v = 7.43 m/sec

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