Question

Define Speed and velocity. ​

Answer 1

Answer:

Speed

• Distance travelled per unit time by a body is called the speed of the body.
• It is a scalar quantity.
• It's SI unit is metre per second.

Velocity

• Displacement per unit time of a body is called the velocity of a body.
• It is a vector quantity.
• It's SI unit is metre per second.

Answer 2

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1) Speed :- it is distance travelled by Taken taken.

$\large{\boxed{\boxed{Speed \: = \: {\frac{Distance}{Time}}}}}$

• It is a Scaler quantity

• Speed can never be negative or zero.

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2) Velocity :- it is displacement by time taken.

$\large{\boxed{\boxed{Velocity \: = \: {\frac{Displacement}{Time}}}}}$

in circular motion it is called angular velocity (ω)

ω = dθ/dt

• it is vector quantity

• Velocity can be negative or zero