Question

which of the following does not belong to the group (velocity,acceleration,speed,displacement)​

Answer 1

Answer:

speed

Explanation:

all other quantities are vector but speed is scalar

Answer 2

Speed does not belong to the group.

• There are four physical quantities mentioned in the question -

1. Velocity
2. Acceleration
3. Speed
4. Displacement

• Now, we know that physical quantities are classified into two categories - 1) Scalar quantity and 2) Vector quantity. The physical quantity having magnitude only is known as scalar quantity. Whereas, the physical quantity having both magnitude and direction is known as vector quantity.
• Among the given physical quantities : velocity, acceleration and displacement are vector quantities, because they can have both magnitude and direction. (Eg. A displacement = 30m East ; 30m = Magnitude and East = Direction.)
• Whereas, speed is the ratio of two scalar quantities (distance and time), that's why it is a scalar quantity itself.