16. A bicycle wheel is 0.75 m in diameter. If the wheel makes 50 revolutions, wh

Question

16. A bicycle wheel is 0.75 m in diameter. If the wheel makes 50 revolutions, what linear distance will it travel. A spring with a spring constant of 200 N/m is compressed a distance of 5 cm. How much work is done by the compressive force? 17. 18. True/False: In a rotating rigid body all the particles have the sample linear velocity A circular hoop and a circular disk have the same mass and the same radius. They are simultaneously released to roll down an incline. Their final speeds show that a. hoop is faster 19. b. disk is faster c. speeds are the same 20. The restoring force for a simple pendulumn is ????????????

Explanation / Answer

16) d = 0.75 m , theta = 50 rev
theta = l/r
50*2*3.14 = l/(0.75/2)
l = 117.75 m

17) k = 200 N/m , d = 5 cm
W = 0.5kd^2
W = 0.5*200*0.05^2
W = 0.25 J

18) Ture

19) circular loop moment of inertia = mr^2
circular disk = 0.5 mr^2
disk is faster
correct option is (b)

20) Tension

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