KylesRi KylesRi

25-05-2022
Physics

contestada

a car of mass 1500 kg collides with a wall during a crush test. all of the energytrcnsferred during the collision is absorbed by the crumble zone. If the energy absorbed by the crumble zone is 4.3 x 10 to the power of 5 J, show that the speed of the car before the collision is 24 m/s.

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indrawboy indrawboy

25-05-2022

KE = 1/2mv²

v² = 2KE/m

v² = 2 x 4.3 x 10⁵ : 1500

v = 24 m/s

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