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kotykmax [81]
4 years ago
11

A car is sitting still. It accelerates to a constant speed then it decelerates again to zero speed. While the car is acceleratin

g how do the directions of the angular acceleration and angular velocity of one of the wheels compare
Physics
1 answer:
Kobotan [32]4 years ago
5 0

Answer:

in the acceleration process the quantity α and w must increase

the deceleration process the alpha quantity must constant  a direction opposite to the angular velocity

Explanation:

Acceleration and angular velocity are related to linear

           v = w xr

            a = αx r

The bold letters indicate vectors and the cross is a vector product, therefore if

we can see that the relationship between linear and angular variables is direct

therefore in the acceleration process the quantity α and w must increase as well as their linear counterparts

in the deceleration process the alpha quantity must constant as the linear acceleration and must have a direction opposite to the angular velocity

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