A man can swim at the rate of 5km/hr in still water a river 1km wide flows at the - Physics - Motion In A Plane

Question

A man can swim at the rate of 5km/hr in still water a river 1km
wide flows at the rate of 3km/hr a swimmer wishes to cross
the river straight Along what direction must he strike what
should be his resultant velocity how much time he would take to
cross

Jyoti Pant · Accepted Answer

Velocity of river w r t ground is, V r = 3 km/h Velocity man w r t river is, V m = 5 km/h Suppose the man starts swimming at an angle Î¸ with the flow of river, such that, the manâ€™s relative velocity w r t ground is perpendicular to the flow of river Then,

The man swims with this velocity w r t ground and reaches the opposite point on the bank which is 1 km away So, time taken is = Â¼ = 0 25 h = 15 min

A man can swim at the rate of 5km/hr in still water. a river 1km wide flows at the rate of 3km/hr. a swimmer wishes to cross the river straight.Along what direction must he strike. what should be his resultant velocity. how much time he would take to cross.

A man can swim at the rate of 5km/hr in still water. a river 1km wide flows at the rate of 3km/hr. a swimmer wishes to cross

the river straight.Along what direction must he strike. what should be his resultant velocity. how much time he would take to cross.