River is flowing with velocity (3i+2j)m/s. A boat
is moving in river with velocity (3i-2j) m/s with respect to
the river. The speed of boat w.r.t ground is
(1) 1 m/s
(2) 4 m/s
(3) 6 m/s
(4) 8 m/s
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Answer:
4
Explanation:
I am not sure
relative velocity of boat with river=Vbr
3i-2j-(3i+2j)
so -3i get cancelled
=-4j
taking modulus root of (-4^2)=root 16
which is=4
Answer:
Here,
Velocity of boat wrt groumd is,
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