32000 Ka 5gram Kitna hoga
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Answer:
A man can swim with a velocity v relative to water. He has to cross a river of width d flowing with a velocity u (u> v). The distance through which he is carried downstream by the river is x. Which of the following statements are correct ?
(A) If he crosses the river in minimum time, x=duvx=duv
(B) x cannot be less than duvduv
(C) For x to be minimum, he has to swim in a direction making an angle of π2+sin−1(vu)π2+sin−1(vu) with the direction of the flow of water.
(D) x will be maximum if he swims in a direction making an angle of π2−sin−1(vu)π2−sin−1(vu) with the direction of the flow of water.
A
B
C
DA man can swim with a velocity v relative to water. He has to cross a river of width d flowing with a velocity u (u> v). The distance through which he is carried downstream by the river is x. Which of the following statements are correct ?
(A) If he crosses the river in minimum time, x=duvx=duv
(B) x cannot be less than duvduv
(C) For x to be minimum, he has to swim in a direction making an angle of π2+sin−1(vu)π2+sin−1(vu) with the direction of the flow of water.
(D) x will be maximum if he swims in a direction making an angle of π2−sin−1(vu)π2−sin−1(vu) with the direction of the flow of water.
A
B
C
D
Answer:
32000÷2
16000
mark this is a brainliest.