paige2406 paige2406

30-10-2020
Physics

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A 35 kg child has 190 J of kinetic energy after sledding down a hill. What is the child's speed in meters per second at the bottom of the hill?

Respuesta :

atomic25 atomic25

30-10-2020

Given: Mass= 35kg

Ekinetic= 190 J

Analysis: Ek= mv^2/2

solution: 190J=35v^2/2

V=square root(2×190)÷2= 3.2 m/s

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