Physics Practice Problems Net Work & Kinetic Energy Practice Problems Solution: T. Rex. The dinosaur Tyrannosaurus rex is thought ...

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Solution: T. Rex. The dinosaur Tyrannosaurus rex is thought to have had a mass of about 7000 kg.Treat the dinosaur as a particle and estimate its kinetic energy at a walking speed of 4 km/h.With what speed would a 70.0-kg person have to move to have the same kinetic energy as a walking T. rex?

Problem

T. Rex. The dinosaur Tyrannosaurus rex is thought to have had a mass of about 7000 kg.

Treat the dinosaur as a particle and estimate its kinetic energy at a walking speed of 4 km/h.

With what speed would a 70.0-kg person have to move to have the same kinetic energy as a walking T. rex?