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10). A bicycle wheel whose diameter is 77cm makes 50 revolutionsin 20 seconds. Find the speed in km/h |
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Answer» Answer: HERE IS YOUR ANSWER ... Step-by-step explanation: DIAMETER = 77 cm = 0.00077 km TIME = 20s = 0.00555 h Circumference= 22/7 x 77/100000 = 0.00242 Km 50 revolution= 0.00242 x 50 = 0.121 Speed = distance/time = 0.121/0.00555 = 12100/555 = 21.8 km/h --------------------------------------------------------------------- AGAR CALCULATION GALAT LAG RAHI HAI TO CHECK KR LENA. BUT YE SAHI HAI. HOPE IT WILL HELP U... |
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