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The revolutions of your truck engine climb steadily from 1200 rpm to 5500 rpm i…

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Wize University Physics Textbook (Master) > Angular / Rotational Motion

Rotation Kinematics

3 Activities

The revolutions of your truck engine climb steadily from 1200 rpm to 5500 rpm in 2.7s. What is
a) the engine's angular acceleration? (in $rad/s^2$)
b) the tangential acceleration of a point on the edge of the engine's 3.5cm diameter crankshaft? (in $m/s^2$)
c) the number of revolutions the engine makes during this time?

(Hint: convert from rpm to SI units first.)
More Rotation Kinematics Questions:
Practice: Quick rotational dynamics
The engine of a turbine has a torque of 100 Nm. The engine rotates a 20 m long and 100 kg blade. How long does it take the blade to reach to 400 rpm? Model the blade as a thin rod.
A merry-go-round starts from rest and is accelerating to 100 revolutions per second in 25 seconds. Calculate the angular acceleration α\alpha and the number of revolutions the merry-go-round completes in 1 minute.
The revolutions of your truck engine climb steadily from 1200 rpm to 5500 rpm in 2.7s. What is a) the engine's angular acceleration? b) the tangential acceleration of a point on the edge of the engine's 3.5cm diameter crankshaft? c) the number of revolutions the engine makes during this time?
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rotational motion
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