Question

one of the following is not a vector quantity this one is;

1)displacement
2)speed
3)acceleration
4)velocity​

Answer 1

Solution :

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$\boxed{\sf{\red{Displacement :}}}$

• Displacement is defined as the shortest distance between initial and final position.
• Displacement can be positive, negative and zero.
• It is a vector quantity.
• SI unit of displacement is m

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$\boxed{\sf{\blue{Speed :}}}$

• Speed is defined as ratio of distance travelled to the time taken.
• Distance is defined as total length of path which is covered by moving body.
• Speed has always positive magnitude.
• Speed is a scalar quantity, because displacement is also a scalar quantity.
• SI unit of speed is m/s

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$\boxed{\sf{\green{Acceleration :}}}$

• Acceleration is defined as ratio of change in velocity to the time interval.
• Acceleration is a vector quantity.
• Acceleration can be positive, negative and zero.
• SI unit of acceleration is m/s$^2$

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$\boxed{\sf{\pink{Velocity :}}}$

• Velocity is defined as ratio of total displacement to the time interval.
• Velocity can also be positive, negative and zero.
• Velocity is a scalar quantity.
• SI unit of velocity is m/s

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Answer 2

$\tt{\huge{\purple{\leadsto{Hello!!! }}}}$

Question :

One of the following is not a vector quantity this one is;

1)displacement

2)speed ✓✓✓✓✓

3)acceleration

4)velocity

Solution :

Speed is not a vector Quantity.

Additional Information :

• A vector quantity has magnitude as well as direction.

• A scalar quantity has only direction.

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one of the following is not a vector quantity this one is;

1)displacement

2)speed

3)acceleration

4)velocity