His speed at the bottom of the swing, just as he clears the water, is 4.0 m/s. Tarzan doesn't know that the vine has a breaking strength of 1.0 103 N. What is the total force Tarzan excerts on the vine?
Answer is in N.
Tarzan (m = 87 kg) tries to cross a river by swinging from a 13.0 m long vine.?
tarzans swings in a circular motion (half a circle). Therefore net force is = mv^2/r
At bottom of his swing there are two forces acting on him the tension of the rope and gravitational pull.
Net Force=mv^2/r = T - mg
= (87kg) x (4m/s^2) / (13m) = T - (87kg x 9.8m/s^2)
T=960N
Tension of rope is equal to the force tarzan exerts on vine.
opera music
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