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While riding a bicycle, chemical energy (from chemical reactions) is not directly involved in the process, whereas kinetic, mechanical, and heat energies are present due to motion and friction.
The ratio of the speed of boats ‘A’ and ‘B’ in still water is 8:9, respectively. The speed of the current is 25% of the speed of boat ‘A’ in...
The time taken by the boat to cover (d+130) km distance in downstream is 1.9 hours less than the time taken by the same boat to cover (d-45) km distance...
A boat covers a distance of 57 km upstream in 9.5 hours. If the boat's speed in still water had been doubled, it would have taken only 2 hours to cover...
The duration it takes for boat 'P' to cover 160 km downstream is equal to the duration it takes to cover 120 km upstream. If the ratio of the speed of b...
The speed of a motorboat in still water is 50 km/hr. If the motorboat travels 120 km along the stream in 1 hour 30 minutes, then the time taken by it t...
The speed of current is 26 km/hr. If the speed of the boat in still water had been 12 km/hr more than the original speed then it would take 7.5 hours to...
A boat covers a distance of 36 kilometers in still water in 24 minutes. If the current's speed is two-fifths of the boat's speed in still water, how lon...
A boat can cover a distance of 64 km downstream in 4 hours less time than it takes to travel the same distance upstream. If the current of the stream fl...
Speed of a boat in still water to speed of boat in upstream is 9:5. If the boat can travel 390 km in downstream in 5 hours, then find the time taken by ...
