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Which of the following measures as vector quantity?
  • a)
    40°
  • b)
    10-19 coulomb
  • c)
    20 m/s2
  • d)
    10 kg
Correct answer is option 'C'. Can you explain this answer?
Verified Answer
Which of the following measures as vector quantity?a)40°b)10-19cou...
Concept:
  • Vector Quantity: Physical quantities that have magnitude and direction and obey triangle law are called vector quantities.
  • Example: Displacement, Velocity, etc.
Additional Information 
  • The velocity of a moving object is defined as the displacement of the object in the unit time interval.
  • It is a vector quantity and its SI unit is meter/second.
  • Acceleration of an object is defined as the rate of change of velocity of the object.
  • It is a vector quantity and its SI unit is (m/s2)
  • ∴ The correct answer is 20 m/s2.
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Which of the following measures as vector quantity?a)40°b)10-19cou...


Vector Quantity:

Vectors are quantities that have both magnitude and direction. They are represented by arrows in diagrams, where the length of the arrow represents the magnitude and the direction of the arrow represents the direction of the quantity.

Explanation:

- 40°: This is a measure of angle in degrees. Angles are scalar quantities as they only have magnitude and no direction associated with them.

- 10-19 Coulomb: Coulomb is a unit of electric charge. Electric charge is a scalar quantity as it only has magnitude and no direction associated with it.

- 20 m/s^2: This is a measure of acceleration. Acceleration is a vector quantity as it has both magnitude (20 m/s^2) and direction (direction of acceleration).

- 10 kg: This is a measure of mass. Mass is a scalar quantity as it only has magnitude and no direction associated with it.

Therefore, the only vector quantity among the options given is 20 m/s^2 as it has both magnitude and direction associated with it.
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Which of the following measures as vector quantity?a)40°b)10-19coulombc)20 m/s2d)10 kgCorrect answer is option 'C'. Can you explain this answer?
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