Kelvi

The speed of a swimmer in still water is $20$ m/s. The speed of river water is $10$ m/s and is flowing due east. If he is standing on the south bank and wishes to cross the river along the shortest path, the angle at which he should make his strokes w.r.t. north is given by:

medium

Motion in a Plane

2019

physics

$30^\circ$ west

$0^\circ$

$60^\circ$ west

$45^\circ$ west

Explanation

To solve this problem, we need to determine the angle at which the swimmer should swim to cross the river along the shortest path. $\\$ Given: $\\$ • Speed of the swimmer in still water $(v_s) = 20$ m/s $\\$ • Speed of the river $(v_r) = 10$

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The speed of a swimmer in still water is 20 20 20 m/s. The speed of river water is 10 10 10 m/s and is flowing due east. If he is standing on the south bank and wishes to cross the river along the shortest path, the angle at which he should make his strokes w.r.t. north is given by:

Explanation

Our AI powered practice platform can help you achieve your doctor dream.

The speed of a swimmer in still water is $20$ m/s. The speed of river water is $10$ m/s and is flowing due east. If he is standing on the south bank and wishes to cross the river along the shortest path, the angle at which he should make his strokes w.r.t. north is given by: