Question

Q.2) A river is following at the rate of 6km/n. A man Swims across it with a velocity of
9km/n. The resurtaw velocity of the man will be.
a) √15 km/hr
b) √45 km/hr
c) √117 km/hr
d) √225 km/hr​

Answer 1

$\LARGE\underline{\underline{\sf Given:}}$

• River Velocity $\sf{(V_R)}$=6km/h

• Swimmer Velocity $\sf{(V_S)}$ = 9km/h

$\LARGE\underline{\underline{\sf To\:Find:}}$

• Resultant Velocity of the man will be = ?

$\LARGE\underline{\underline{\sf Solution:}}$

$\large{\boxed{\sf V=\sqrt{(V_R)^2+(V_S)^2}}}$

$\large\implies{\sf V=\sqrt{(6)^2+(9)^2} }$

$\large\implies{\sf V=\sqrt{36+81}}$

$\large\implies{\sf V=\sqrt{117}}$

$\LARGE\underline{\underline{\sf Answer:}}$

Option (c)

•°• Resultant Velocity of man will be √117km/h

Answer 2

Answer:

c. √117km/hr

Explanation:

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