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Class 10 Class 12

A passenger arriving in a new town wishes to go from the station to a hotel located 10 km away on a straight road from the station. A dishonest taxi driver takes him along a circuitous path 23 km long and reaches the hotel in 28 minutes.
What is:
(a) the average speed of the taxi?
(b) the magnitude of average velocity? Are the two equal?

Given,

Magnitude of displacement = 10 km

Total path length = 23 km

Time taken = 28 min = 7/15 hr.

Therefore,

Magnitude of average velocity is,

Therefore, we can see that the average speed and magnitude of average velocity are not equal.

237 Views

Give three examples of scalar quantities.

Mass, temperature and energy
769 Views

What is a scalar quantity?

A physical quantity that requires only magnitude for its complete specification is called a scalar quantity.
1212 Views

What are the basic characteristics that a quantity must possess so that it may be a vector quantity?

A quantity must possess the direction and must follow the vector axioms. Any quantity that follows the vector axioms are classified as vectors.

814 Views

What is a vector quantity?

A physical quantity that requires direction along with magnitude, for its complete specification is called a vector quantity.
835 Views

Give three examples of vector quantities.

Force, impulse and momentum.
865 Views