A man of weight W is standing on an elevator which is ascending with an acceleration a. The apparent weight of the man isPhysics A. mg B. mg – ma C. mg + ma D. mg – ma
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
