Physics :Mechanics -Finding the velocity by ClassOf1

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Sub: Physics                                                                              Topic: Mechanics

Question:

Finding the velocity of the third piece while exploding an object into
three pieces.
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An object at rest explodes into three pieces of equal masses. one moves east at 23 m/s,

while the second piece moves northwest at 14 m/s. What is the velocity of the third piece?

Assume each piece has a mass of 2 kg.

Solution:
Velocity can be negative.

Speed cannot be negative.

A Scalar quantity has Only Magnitude, which is always a positive number and can Never be
negative.

For instance, speed can Never be negative.

A Vector quantity on the other hand has two components: Magnitude and Direction.

Velocity is a Vector quantity.

It tells us about the speed of the object and also, the direction in which it travels.

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