In a group of boys, play volleyball, play badminton and boys play cricket. Five boys play all the three games. 8 boys play atleast two of the three games. How many of them play only one game?
In an examination students fail in English and fail in Maths. If students fail in both the subjects, then students pass the examination. What is the total number of students taking the exam?
A object moves in a horizontal circular track with a radius of . An external force of , always tangent to the track, causes the object to speed up as it goes around. The work done by the external force as the mass makes one revolution is:
A crate resting on a rough horizontal floor is to be moved horizontally. The coefficient of static friction is. To start the crate moving with the weakest possible applied force, in what direction should the force be applied?
