1 answer

Please write legibly and write out all equations and units. Please show all steps. Algebra-based physics...

Question:

Please write legibly and write out all equations and units.

Please show all steps. Algebra-based physics only please.

I struggle with manipulating equations and keeping angular and linear variables separate.

1. When a bicycle is slowing down, the wheels slow with an angular acceleration of -15 rad/s2. If each wheel has a mass of 0.

12. Two solid rods, each which length L, radius R, and mass M, are connected together, as shown. When they are rotated around

20. A bicycle with 0.3 m radius wheel that the angular speed of each wheel is 75 rad/s. If the bicyclist then applies the bra

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12. Two solid rods, each which length L, radius R, and mass M, are connected together, as shown. When they are rotated around the horizontal axis shown, what is the equation for the moment of inertia? Rotation Axis --- ----------- A {MR2 + 1ML? B MR2 + {ML C ML MR2 E ŽMR2 + 2ML
20. A bicycle with 0.3 m radius wheel that the angular speed of each wheel is 75 rad/s. If the bicyclist then applies the brakes and the wheels slow with an angular acceleration of -15 rad/s?, how many revolutions will each wheel make before the bike stops? A B C D E 188 revolutions 10,700 revolutions 62.7 revolutions 29.8 revolutions 14.7 revolutions

Answers

2 = -15 rad /s angular acceleration m = o.uky r=0.3m I = MR² = c.ux0.0g = 0.036 reg. m² Torque T = Id = 0.0364 (-15) T= -0.5= 0.3m , & win x = -15 rad 1st 75 rad/s , we o radls using with Wh + 220 (0)² = (75² – 2x 15 x 0 O = (75)2 = 5625 = 187.5 rad

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