Tarzan is swinging through the jungle on a vine that will break if the force exceeds 2.0 x 103 n. if the length of the vince is 5.0 m and tarzan's mass is 100. kg, what is the highest speed he can safely travel while swinging on the vine? hint: at what point in the swing will the tension in the vine be the greatest?

Apulley system is used to lift a 2,000 newton engine up a distance of 3 meters. the operator must apply a force of 250 newtons to the chain of the pulley system to lift the motor. to lift the engine 3 meters, the operator must pull a total of 30 meters of chain through the pulley system. what is the value of di?

Why does lightning travel from clouds to the ground?

How does a circuit breaker protect a refrigerator? a. when the current is too high, a metal strip in the fuse melts and opens the circuit. b. when the resistance is too high , a re-settable which opens a circuit c. when the current is too high , a re-settable switch opens the circuit d. when the resistance is too high a metal strip in the fuse melts and opens the circuit