If a wheel of radius r turns through an angle of 30° then the distance through which any point on its rim moves isPhysics A. π /3 x r B. π/6 x r C. V/30 x r D. π / 180 x r
Two automobiles are 150 kilometers apart and traveling toward each other. One automobile is moving at 60km/h and the other is moving at 40km/h mph. In how many hours will they meet?
The most fundamental of all sciences which provides basic principles and fundamental laws to other branches of science is