Question

If a car traveling at 48 km/h overtakes another car travelling at 30 km/h, the relative velocity of the first car with respect to another car is ______

Options

• -18 km/h

• 18 km/h

• 98 km/h

• 49 km/h

Answer 1

If a car traveling at 48 km/h overtakes another car travelling at 30 km/h, the relative velocity of the first car with respect to another car is 18 km/h.

Explanation:

The relative velocity of 1^st car w.r.t 2^nd car

V₁₂ = V₁ - V₂ = 48 - 30 = 18 km/h