Question

two are moving in the same direction with the same speed 30 km/hr they are separated by 5 km .What is the the speed of the car moving in the opposite direction if it meet the too cars at an instant of 4
min?

Answer 1

Answer:

Since the two cars are moving in the same direction with same speed therefore relative speed between two cars is zero.

Let the relative speed of the third car be w.r.t the two cars.

Relative velocity of the third car:

(4/60)h

5km

=75km/h

Actual velocity of the third car:75−30=45km/h