[填空题]
A 55-kg person riding a bidh,4 aa 3is:kviu30 ivk x(-j4yd.qfew i51x kre puts all her weight on each pedal when climbing a hill. The pedals rot5(ri-j.xdqwekx 41yfate 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?
