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Kazeer [188]
2 years ago
9

A motorcycle moving 18.8 m/s has 57800 J of KE. What is its mass?

Physics
1 answer:
Brums [2.3K]2 years ago
8 0

Answer:

m = 327.07 kg

Explanation:

Given that,

Kinetic energy of a motorcycle, E = 57800 J

Velocity of the motorcycle, v = 18.8 m/s

We need to find the mass of the motorcycle. The kinetic energy of an object is given by :

E=\dfrac{1}{2}mv^2

m is mass

m=\dfrac{2E}{v^2}\\\\m=\dfrac{2\times 57800 }{(18.8)^2}\\\\m=327.07\ kg

So, the mass of the motorcycle is 327.07 kg.

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Explanation:

First, we will find the mass of the water:

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Now, we will find the energy required to heat the water between given temperature limits:

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