A car starts from rest and accelerates uniformly to a speed of 50km/h in 18s. If the wheels of the car are 70cm in diameter. Calculate;

Question

A car starts from rest and accelerates uniformly to a speed of 50km/h in 18s. If the wheels of the car are 70cm in diameter. Calculate; 
a.The final angular velocity of the wheels
b.angular acceleration

drwls · Answer

Vfinal = 50 km/h = 13.889 m/s a = acceleration rate = 13.889/18 = 0.7716 m/s^2 a) Final W = Vfinal/R = 39.68 rad/s b) Angular acceleration = a/R = ___ rad/s^2