Question

A person is moving with a velocity of 10m/s^-1 towards north , a car moving with a velocity of 20 m/s^-1 towards south crosses the person.The velocity of the car relative to the person is
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Answer 1

Given:  A person is moving with a velocity of 10 m/s towards north , a car moving with a velocity of 20 m/s towards south crosses the person.

To find: The velocity of the car relative to the person ?

Solution:

• Now we have given that:

               Velocity of person = V(a) = 10 m/s

               Velocity of car = V(b) = 20 m/s

• Now we have given that car and person are travelling in opposite direction.

• So:

               Relative velocity = -20 - 10

               Relative velocity = -30 m/s

Answer:

            So the relative velocity is  -30 m/s.