To a man walking at 7 kmph due west, the wind appears to blow from the north-west but when he walks at 3 kmph due west, the wind appears to blow from north. The magnitude and actual direction of wind are

To a man walking at 7 kmph due west, the wind appears to blow from the

1.	To a man walking at 7 kmph due west, the wind appears to blow from the north-west but when he walks at 3 kmph due west, the wind appears to blow from north. The magnitude and actual direction of wind are
Answer» `5kmph, tan^(-1)((3)/(4))` east of NORTH 5kmph, `tan^((3)/(4))` north of east 4kmph, `tan^(-1)((3)/(4))` east of north 3kmph,` tan^(-1)((3)/(4))` north of east Solution :