M Marlo W New member Apr 20, 2009 #1 circular track with a radius of 40.0m? Jerry rides his bicycle with a tangential speed of 13.2 m/s around a circular track with a radius of 40.0m. If the combined mass of Jerry and his bike is 86.5 kg, what force is required to keep Jerry in motion?
circular track with a radius of 40.0m? Jerry rides his bicycle with a tangential speed of 13.2 m/s around a circular track with a radius of 40.0m. If the combined mass of Jerry and his bike is 86.5 kg, what force is required to keep Jerry in motion?
J Joe M Guest Apr 21, 2009 #2 Velocity = wr accel = w^2r f=ma velocity = 13.2= w(40) w= 0.33 rad/sec This is the force made by the cyclist. The force to keep him on the road must be equal and opposite. accel= (0.33)^2*40= 4.36 m/s/s f= 4,36 m/s/s*(86.5)kg=376.8 N
Velocity = wr accel = w^2r f=ma velocity = 13.2= w(40) w= 0.33 rad/sec This is the force made by the cyclist. The force to keep him on the road must be equal and opposite. accel= (0.33)^2*40= 4.36 m/s/s f= 4,36 m/s/s*(86.5)kg=376.8 N
