Exams › NEET › Physics

A car moves from X to Y with a uniform speed vᵤ and returns to Y with a uniform speed vₐ. The average speed for this round trip is

1. √(vᵤvₐ)
2. vᵤvₐ / (vᵤ + vₐ)
3. (vᵤ + vₐ) / 2
4. 2vᵤvₐ / (vᵤ + vₐ)

Correct answer: 2vᵤvₐ / (vᵤ + vₐ)

Solution

The average speed for a round trip is calculated as the total distance divided by the total time. Since the car travels the same distance in both directions, the total distance is 2d. The total time is d/vᵤ + d/vₐ. Simplifying, the average speed is 2vᵤvₐ / (vᵤ + vₐ).

Related NEET Physics questions

• In the equation of motion, \( \boldsymbol{S}=\boldsymbol{u} \boldsymbol{t}+ \) \( 1 / 2 a t^{2}, \) S stands for
• A body is accelerated by applying a force of 30 N. The change in the momentum of the body after 2 sec is?
• A passenger in moving train tosses a coin which falls behind him. It means that the motion of the train is
• From the displacement-time graph shown here, find the velocity of the body as it moves from \( A \) to \( B \)
• The distance of a particle as a function of time is shown below. The graph indicates that
• Whenever an object moves with a constant speed, its distance - time graph is a

⚔️ Practice NEET Physics free + battle 1v1 →