Question

An 1000 kg truck rounds a rotunda on a smooth, level road of radius 69 m at a speed of 21 m/s. Determine if the truck will be able to make the turn if the concrete road is dry and the coefficient of static friction is 1.25. what is the quation of this

Answer 1

Answer:

Velocity =Radius × Angular velocity

Velocity =90×5/18m/s

Velocity =25 m/s

angular velocity=velocity/radius=25/250=0.1rad/s

centripetal acceleration =angular velocity

2

×radius=0.01×250=2.5m/s

2

2

Centripetal force=m×centripetal acceleration =2000×2.5=5000N