JEE MAIN - Physics (2021 - 18th March Morning Shift - No. 20)
A person is swimming with a speed of 10 m/s at an angle of 120$$^\circ$$ with the flow and reaches to a point directly opposite on the other side of the river. The speed of the flow is 'x' m/s. The value of 'x' to the nearest integer is __________.
Trả lời
5
Giải thích
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$${V_R} = 10\sin 30^\circ $$
$${V_R} = {{10} \over 2} = 5$$ m/s
VR = 5 m/s