Sahay Sir > Question Answers > Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) > A truck has to carry a load in the shortest time from one point to another at a distance L from the first.It can only start up or slow down at the same acceleration a. What maximum velocity must the truck attain to satisfy this condition ?

A truck has to carry a load in the shortest time from one point to another at a distance L from the first.It can only start up or slow down at the same acceleration a. What maximum velocity must the truck attain to satisfy this condition ?

A point moves in xy-plane according to equation x = at the second for the third Three points are located at the vertices of an equilateral triangle whose side equals a. They all start moving simultaneously with velocity v constant in modulus with the first point heading continually for the second y = at (l - bt) where a and b are positive constants and t is time. The instant at which velocity vector is at π/4 with acceleration vector is given by: