Question

A wheel rotates with a constant angular speed ω. Which one of the following is true concerning the angularacceleration α of the wheel, the tangential accelerationaT of a point on the rim of the wheel, and thecentripetal acceleration ac of a point on the rim?

a)α= 0rad/s2, aT= 0m/s2, ac= 0 m/s2
b)α=0 aT0 ac= 0
c) α0 aT=0 ac=0
d)α=0 aT=0 ac0
e)α 0 aT0 ac0

Answer 1

None of the given options

Step-by-step explanation:

If the angular speed is constant, there is no angular acceleration:

α=0

If there is no angular acceleration, tangential acceleration will also be 0.

Centripetal acceleration, on the other hand, will be:

`ac =\omega^2*R` (Different to 0)