Question
In insect flight, what term is used to describe the
upward movement of wings during each stroke?Solution
The upstroke refers to the phase of wing movement where wings are lifted upward, allowing repositioning for the next powerful downstroke.
A man can row 6 km/hr in still water. It takes him twice as long to row up as to row down the river. Find the rate of the stream.
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The speed of a boat in still water is three times the speed of the boat upstream. If the boat takes 30 minutes to cover 27 km downstream, then find the ...
A boat covers a distance of 96 km downstream in 4 hours and returns upstream in 6 hours. Find the speed of the stream.
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A motorboat completes 36 km upstream and 96 km downstream together in 7 hours. If its speed in still water is 12 km/h more than the stream, determine th...
A man can row 5 km/hr in still water. If the speed of the current is 2 km/hr, it takes 4 hours more in upstream than in the downstream for the same dist...
A boat goes 450 km downstream in 25 hours, and 200 km upstream in 20 hours. The speed of the stream is
The speed of a boat in still water is 30 km/hr. If the boat covers 180 km in upstream in 12 hours, then find the time taken by the boat to travel 180 km...
