[填空题]
A 55-kg person riding a bike d -lqzr p:t: j)pq:;cpputs all her weight on each pedal whenj7x u(2odhlh kr )u-7e climbing a hillxdulu rhj- oh)7(2ek7. The pedals rotate in a circle of radius 17 cm. (a) What is the maximum torque she exerts? $m \cdot N$ (b) How could she exert more torque?
Post time 2025-2-18 20:00:22
