macandcheese2985 macandcheese2985

24-12-2022
Physics

contestada

A toy rocket has a velocity of 40 m/s and a kinetic energy of 2000 j. calculate its mass.

Respuesta :

jsimpson11000 jsimpson11000

24-12-2022

Answer:

2.5 kg

Explanation:

Kinetic Energy = 1/2 m * v^2

2 * KE / v^2 = m 2 * 2000 / ( 40^2) = 2.5 kg

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