Thank you for visiting The crankshaft in a race car goes from rest to 3600 rpm in 2 8 seconds 1 What is the crankshaft s angular acceleration 2. This page is designed to guide you through key points and clear explanations related to the topic at hand. We aim to make your learning experience smooth, insightful, and informative. Dive in and discover the answers you're looking for!
Answer :
The angular acceleration of the crankshaft can be found using the formula:
angular acceleration = (final angular velocity - initial angular velocity) / time
The initial angular velocity is 0 since the crankshaft starts from rest. The final angular velocity can be found by converting 3600 rpm to radians per second:
final angular velocity = (3600 rpm) x (2π radians/1 revolution) x (1 min/60 s) = 377 radians/s
Plugging in the values, we get:
angular acceleration = (377 radians/s - 0 radians/s) / 2.8 s = 134.6 radians/s^2
Therefore, the angular acceleration of the crankshaft is 134.6 radians/s^2.
To find the number of revolutions the crankshaft makes while reaching 3600 rpm, we can use the formula:
number of revolutions = final angular velocity / (2π radians/1 revolution)
Plugging in the values, we get:
number of revolutions = 377 radians/s / (2π radians/1 revolution) = 59.9 revolutions
Therefore, the crankshaft makes approximately 59.9 revolutions while reaching 3600 rpm.
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