Awheel starts from rest and spins with a constant angularacceleration. as time goes on the acceleration vector for a pointon the rim:
a. decreases in magnitude and becomes more nearly tangent tothe rim
b. decreases in magnitude and becomes more nearly radial
c. increases in magnitude and becomes more nearly tangent tothe rim
d. increases in magnitude and becomes more nearly radial
e. increases in magnitude but retains the same angle with thetangent to the rim

E

Explanation:

As we know that angular acceleration α and tangential acceleration at given as

at = α r

r=Radius of wheel

The tangential acceleration a is the rate of change of linear speed of the wheel

We also know that radial acceleration ar

So when the time goes on then the angular speed of the wheel will increase due to this the linear and acceleration vector of the wheel will also increase.But the the angle will remain same form the tangent of the rim.

So the option E is correct.

prolly a beacuse the momentuem the car has increases while going down hill

it has to be b, about 97 percent.