2 Answers

Nonamorando · Answer 1 · 2018-12-02T10:14:58+0000

Answer:

The speed of the dog is 4.39 m/s.

Step-by-step explanation:

Given that,

Mass of the dog, m = 14 kg

Kinetic energy of the dog, E = 135.5 J

To find :

The speed of the dog

Solve :

The energy possessed by an object due to its motion is called ts kinetic energy. Its formula is given by :

E=(1)/(2)mv^2

$v=\sqrt{(2E)/(m)}$

$v=\sqrt{(2* 135.5\ J)/(14\ kg)}$

v = 4.39 m/s

Therefore, the speed of the dog is 4.39 m/s.

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