gravity provides a downward acceleration of 9.8 m/s^2
so the bungee cord is providing an upward acceleration of 1.4 m/s^2 (9.8 - 8.4)
the force is upward
with a magnitude of 65 kg * 1.4 m/s^2
A 65-kg bungee jumper has fallen far enough that her bungee cord is beginning to stretch and resist her downward motion. Find the force (magnitude and direction) exerted on her by the bungee cord at an instant when her downward acceleration has a magnitude of 8.4 m/s2. Ignore the effects of air resistance.
1 answer
1 answer