A laboratory centrifuge rotates at 1500 revolutions per minute - Edexcel - A-Level Physics - Question 2 - 2023 - Paper 4
Question 2
A laboratory centrifuge rotates at 1500 revolutions per minute.
Which of the following expressions gives the angular velocity in radians per second?
A) 1500
60... show full transcript
Worked Solution & Example Answer:A laboratory centrifuge rotates at 1500 revolutions per minute - Edexcel - A-Level Physics - Question 2 - 2023 - Paper 4
Step 1
Identify the formula for angular velocity
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Answer
Angular velocity in radians per second can be calculated with the formula:
ext{Angular Velocity} = rac{ ext{Revolutions per minute} imes 2 heta}{ ext{Time in minutes}}
Where heta is equal to 1 full revolution equating to 2heta=2extπ radians.
Step 2
Calculate the angular velocity
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Answer
To find the angular velocity:
Convert revolutions per minute to revolutions per second:
ext{Revolutions per second} = rac{1500}{60}
Substitute into the angular velocity formula:
ext{Angular Velocity} = rac{1500}{60} imes 2 ext{π}
This simplifies to:
ext{Angular Velocity} = rac{1500 imes 2 ext{π}}{60}
Step 3
Select the correct expression
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Answer
After simplifying, the correct expression that gives the angular velocity in radians per second is:
