Question

Difference between speed and velocity

Answer 1

SPEED

• Speed is nothing but the distance travelled by an object per unit of time.
• Speed is a scalar quantity because speed only depends upon the magnitude not the direction of motion of the object.
• Speed is always positive because it doesn't depend on the direction of motion of the object.
• If an object started moving then the speed can never be zero because once object moves then distance is covered which cannot be zero.

VELOCITY

• Velocity is displacement of object per unit of time.
• Velocity  is vector quantity because it depends on the magnitude as well as the direction of motion of object.
• Velocity may be positive and negative as it depends on the direction in which object moves.
• If an object started moving then velocity may be zero if the displacement of the object is zero.

Answer 2

$\huge{\underline{\mathfrak{Answer}}}$

Speed :

• The distance traveled by an object per unit time is termed as speed.

• It is a scalar quantity, it has only magnitude.

• Speed is measured in meter per second.

• Speed can never be negative, it always has a positive value.

Velocity :

• The displacement of an object per unit time is termed as velocity.

• It is a vector quantity, it has both magnitude and direction.

• Velocity may either be positive or be negative.

• Velocity is also measured in meter per second.