A ship sends a signal to the shore located 1360m away and the signal returns in 8s. Calculate the speed of the signal.
A
85m/s
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B
340m/s
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C
170m/s
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D
680m/s
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Solution
The correct option is B340m/s Distance of the ship from the shore, S=1360m
Time taken for signal to return from the shore, =8s
Time taken for signal to reach the shore, t=82=4s
Velocity of signal, V=St V=13604=340m/s