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Course: AP®︎/College Physics 1 > Unit 5

Lesson 4: Torque and angular acceleration
Science
AP®︎/College Physics 1
Simple harmonic motion and rotational motion
Torque and angular acceleration
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Torque and angular acceleration

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Problem

A double pulley is free to rotate about its axis through its center. The radii of the two pulleys are R and 2R. Two cords are wrapped in opposite directions on the pulleys and are attached to masses. As a result, the two tension forces acting on the pulley are equal and acting downwards as shown in the image below so that F1=F2.
When released from rest, what will be the direction of the angular acceleration?
Choose 1 answer: