Question

A 15 kg dog jumps out of a 40 kg canoe. If the dog’s velocity is 1.2 m/s, what is the velocity of the canoe?

Answer 1

here's the easiest answer

Answer 2

The velocity of the canoe is 0.45 m/s and it is moving in opposite direction.

Explanation:

Mass of the dog, $m_d=15\ kg$

Mass of the canoe, $m_c=40\ kg$

Initially, the dog and canoe are at rest.

velocity of the car, v = 1.2 m/s

To find,

The velocity of the canoe.

Solution,

According to the law of conservation of momentum,

initial momentum = final momentum

$m_dv=-m_cV$

V is the velocity of canoe

$V=\dfrac{15\times 1.2}{40}$

V = -0.45 m/s

So, the velocity of the canoe is 0.45 m/s and it is moving in opposite direction.

Learn more,

Conservation of momentum

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