Here are the answers to your questions:
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Which of these quantities is a vector?
Momentum is a vector quantity. Distance, time, and speed are scalar quantities. -
What is the representation of the momentum vector?
The representation of the momentum vector is an arrow. The length and direction of the arrow indicate the magnitude and direction of the momentum. -
What is the formula for momentum P?
The formula for momentum \( P \) is given by:
\[ P = m \cdot v \]
where \( m \) is the mass of the object and \( v \) is its velocity. -
What happens to the total momentum in a system of 2 interacting objects when a net force is exerted upon the system?
The answer is that the total momentum is conserved only in the absence of external net forces. If a net external force is applied to the system, the total momentum will change based on the direction and magnitude of that force. -
What is the magnitude of momentum of a 2 kg body that moves with a speed of 3 m/s?
Using the formula for momentum \( P = m \cdot v \):
\[ P = 2 , \text{kg} \cdot 3 , \text{m/s} = 6 , \text{kg·m/s} \]
Therefore, the magnitude of the momentum is 6 kg·m/s.
11 answers