The driver of a car traveling at velocity v suddenly sees a broad wall in front of him at a distance a. He should
break sharply
turn sharply
both a and b
none of the above
Next Question
A body of mass m is suspended from a string of length l. What is the minimum horizontal velocity that should be given to the body in its lowest position so that it may complete full revolution in the vertical plane with the point of suspension at the center of circle?