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Artyom0805 [142]
3 years ago
15

A girl on a skateboard going around a corner at a speed of 3 m/sec.

Physics
1 answer:
noname [10]3 years ago
5 0
When going round a corner your direction changes which means your velocity changes which means there is an acceleration.
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¿Cuál es la masa de un objeto cuya masa es de 400 J y energía cinética de 107J?
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Answer:

Mass, m = 125 kg

Explanation:

Let us assume that the question says, "What is the mass of an object whose velocity is 400 m/s and the kinetic energy of 10⁷ J.

The kinetic energy of an object is :

K=\dfrac{1}{2}mv^2\\\\m=\dfrac{2K}{v^2}\\\\m=\dfrac{2\times 10^7}{(400)^2}\\\\m=125\ kg

So, the mass of the object is 125 kg.

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