Question

IP Illinois Jones is being pulled from a snake pit with a rope that breaks if the tension in it exceeds 755 N .

A.)If Illinois Jones has a mass of 70.0 kg and the snake pit is 3.70 m deep, what is the minimum time that is required to pull our intrepid explorer from the pit?

B.)Explain why the rope breaks if Jones is pulled from the pit in less time than that calculated in part A.

Answer 1

Concept - use Newton’s law of motion to find the acceleration of the pull. Then use equation of kinematics to find the time required where initial velocity is zero.

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