Concept explainers
If a vector that is 1 cm long represents a velocity of 10 km/h, what velocity does a vector 2 cm long drawn to the same scale represent?
The value of velocity of vector represented by the given length of vector.
Answer to Problem 3A
The velocity will be 20 km/h .
Explanation of Solution
Given:
Velocity of
Calculation:
Consider the given vector. The following figure represents the vector.
If the vector of 2 cm drawn in the same direction as the above 1 cm vector which represent velocity of 10 km/h, it will have the velocity value equal to
Representation is shown below:
Conclusion:
Therefore, the velocity is 20 km/h for a length of 2 cm.
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Conceptual Physics: The High School Physics Program
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