Two telephone poles are separated by 40 m and connected by a wire. A bird of mass 0.50 kg lands on the wire midway among the poles, causing the wire to sag 2.0 m below horizontal. Assuming the wire has negligible mass, what is the tension in the wire?
A wheel of radius 1.0 m is rotating by a constant angular speed of 2.0 rad/s. what is the centripetal acceleration of a point on the wheel's rim?
What is the centripetal acceleration of a point on the perimeter of a bicycle wheel of diameter 70.0 cm when the bike is moving 8.00m/s?