Question

a boat streams in a river with velocity 2i+5j wrt the ground. The river water flows with a velocity -3i-4j wrt the ground. What is the relative velocity of boat wrt river water?

Answer 1

Hey Dear,

◆ Answer -

Relative velocity = 5i + 9j

◆ Explaination -

# Given -

vb = 2i + 5j

vr = -3i - 4j

# Solution -

Relative velocity of the boat w.r.t. water is given by -

vbr = vb - vr

vbr = 2i + 5j - (-3i -4j)

vbr = 2i + 3i + 5j + 4j

vbr = 5i + 9j

Hence, relative velocity of boat wrt river water is 5i + 9j.

Best luck...

Answer 2

The answer is given in the attachment below: