A 2.0 kg , 20-cm-diameter turntable rotates at 130 rpm on frictionles

Carla Murphy

Carla Murphy

Answered question

2021-12-16

A 2.0 kg , 20-cm-diameter turntable rotates at 130 rpm on frictionless bearings. Two 510 g blocks fall from above, hit the turntable simultaneously at opposite ends of a diameter, and stick.
What is the turntables

Answer & Explanation

MoxboasteBots5h

MoxboasteBots5h

Beginner2021-12-17Added 35 answers

Put the values of the question in writing.
M=2 kg
ω=130 r±
m=510 g
=0.510 k
Moment of inertia of 2 kf rotating block.
I=12MR2
Block with a 510g moment of inertia.
I=12mr2
Determine the 510 g block's angular moment with respect to the 2 kg block's rotating center.
Iω=(1+2mr2)ω
Calculate a turntable's angular velocity.
No external torque was generated in the situation discussed above, keeping the angular moment constant.
Iω=Iω
Iω=(I+2mr2)ω
mR22×ω=(I+2mr2)×ω
2×0.122×130=(2×0.122+2×0.510×0.12)×ω
ω=64.35 r±

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