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Physics / Sears and Zemansky's University Physics with Modern Physics 13 / Chapter 9 / Problem 2E

Sears and Zemansky's University Physics with Modern Physics | 13th Edition | ISBN: 9780321696861 | Authors: Hugh D. Young; Roger A. Freedman; A. Lewis Ford

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Solved: An airplane propeller is rotating at 1900 rpm

Chapter 9, Problem 2E

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QUESTION:

Problem 2E

An airplane propeller is rotating at 1900 rpm (rev/min). (a) Compute the propeller’s angular velocity in rad/s. (b) How many seconds does it take for the propeller to turn through 35o?

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QUESTION:

Problem 2E

An airplane propeller is rotating at 1900 rpm (rev/min). (a) Compute the propeller’s angular velocity in rad/s. (b) How many seconds does it take for the propeller to turn through 35o?

ANSWER:

Solution 2E

Step 1 of 6:

An airplane propeller is rotating at 1900 rpm (rev/min). (a) Compute the propeller’s angular velocity in rad/s.

In the given problem, the angular speed is given in revolution per minute, we need to convert the given angular speed to radian per sec.

One complete revolution is equal to 2 $\pi{}$ rad,

That is 1 rev= 2 $\pi{}$ rad

Similarly 1min has 60sec,

1 min = 60 sec

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