AP Physics 1 6.3.B: Angular Impulse from Torque

Practise AP Physics 1 6.3.B by comparing force–time products for a rigid disk and predicting which angular impulse produces the greatest angular speed.

Exam points

Compare force–time products at a fixed disk radius to predict the greatest final angular speed.

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Figure for Question 6.3.B—Describe the angular impulse delivered to an object or rigid system by a torque question 1 — AP Physics 1: Algebra-Based

A string of negligible mass is wrapped around the rim of a solid disk that can rotate without friction about its center, as shown above. The string is pulled down with a force of constant magnitude F for an interval of time $\Delta t$ . If the disk starts from rest, which combination of F and $\Delta t$ will result in the greatest angular speed of the disk?

International Exam 2021 MCQ

Table for Question 6.3.B—Describe the angular impulse delivered to an object or rigid system by a torque question 1 — AP Physics 1: Algebra-Based — Option A

Figure for Question 6.3.B—Describe the angular impulse delivered to an object or rigid system by a torque question 1 — AP Physics 1: Algebra-Based — Option D

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6.3.B—Describe the angular impulse delivered to an object or rigid system by a torque question 1