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nignag [31]
3 years ago
5

As a car accelerates its tires increase their angular velocity from 114 rad/s to 131 rad/s in 0.43 seconds. What is the angular

acceleration of the tires?
Physics
2 answers:
e-lub [12.9K]3 years ago
5 0
I think it's 39.53

(please do calculate it. I am not completely sure)
levacccp [35]3 years ago
5 0

Angular acceleration = (change in angular speed) / (time for the change)

Change in angular speed = (speed at the end) - (speed at the start)

Change in angular speed = (131 rad/s) - (114 rad/s) = 17 rad/s

Angular acceleration = (17 rad/s) / (0.43 sec)

Angular acceleration = (17 / 0.43) rad/s²

<em>Angular acceleration = 39.5 rad/s²</em>

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A person just supports a mass of 20kg suspended from a rope.
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A. 2.36 Newtons

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F = 2.36121...

Very poor question design.

  mass of box... 1 significant digit

        distance... 2 significant digits

mass of earth... 3 significant digits

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The parking brake on a 1000 kg Cadillac has failed, and it is rolling slowly, at 1 mph , toward a group of small children. Seein
iogann1982 [59]

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0.5 mph in the opposite direction

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