Question 154: Motion in 2D & Vectors

Question

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 __________.

Accepted Answer

$${V_R} = 10\sin 30^\circ $$
$${V_R} = {{10} \over 2} = 5$$ m/s
V
R
= 5 m/s

Motion in 2D & Vectors

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 __________.

Choose the correct answer: