What is the centripetal acceleration of a point on the perimeter of a bicycle wheel of diameter 70 cm when the bike is moving 8.0 m/s?
91 m/s².
2.1 x 10² m/s².
2.7 x 10² m/s².
1.8 x 10² m/s².
Is it possible for an object moving with a constant speed to accelerate?
Explain.
No, an object can accelerate only if there is a net force acting on it.
No, if the speed is constant then the acceleration is equal to zero.
Yes, if an object is moving it can experience acceleration.
Yes, although the speed is constant, the direction of the velocity can be changing.
