A mancan swim atthe rate of4 km *h^(-1) in still water. At what angle should the man set himself relative to the current of 2 km*h^(-1) to cross the river perpendicular to the banks ?

A mancan swim atthe rate of4 km *h^(-1) in still water. At what angle

1.	A mancan swim atthe rate of4 km h^(-1) in still water. At what angle should the man set himself relative to the current of 2 kmh^(-1) to cross the river perpendicular to the banks ?
Answer» ANSWER :`60^@`