Question

A boat is sent across a river with a velocity of
8 km h⁻¹. If the resultant velocity of boat is
10 km h⁻¹ , then the velocity of the river is
(a) 12.8 km h⁻¹ (b) 6 km h⁻¹
(c) 8 km h⁻¹ (d) 10 km h⁻¹

Answer 1

Answer:

6

Explanation:

Here flowing of water and boat are perpendicular so by apply phytagoros tripet we get √8^2+x^2 whole root = 10^2

Where x speed of streamline

x= 6m/s