from what maximum height could a 62 kg person jump and land rigidly upright on both feet without breaking their legs? assume that all energy is absorbed by the leg bones in a rigid landing.

Respuesta :

A person weighing around 62 kg can jump from a height of 0.329 metres without breaking their legs.

Potential energy present in a jumper from height h. = m g h  

which, when the individual strikes the ground, entirely transforms into kinetic energy. Now, the human can only absorb a maximum of 200 J of energy.

m = 62 kg

g = 9.8 m/s²

⇒ m g h = 200 J

⇒ h = 200 J / (62 kg × 9.8 m/s²) = 0.329 m

Therefore, a person can only fall from a height of 0.30 m safely and without breaking both of their legs.

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