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PHY 101 PHY 101 Past Questions Objective Question

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An electric fan slows from 500 rev/min to 200 rev/min in 4 s. Find angular acceleration and revolutions made.

A 1.25 rev/s², 23.3 rev

Correct Answer

B 1.52 rev/s², 32.3 rev

C 7.25 rev/s², 27.3 rev

D 5.25 rev/s², 53.3 rev

Option A is the correct answer.

Angular acceleration = (ωf − ωi)/t and θ = average ω × t.

Convert rpm to rev/s first.

Course: PHY 101

Topic: PHY 101 Past Questions

Type: Objective

Difficulty: Not specified

Question 279 of 1250

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