Velocity (m/s)-time (s) graph is plotted for 1 the motion of two cars A and Bfor 10 s, when the cars are initially at rest and acquire final velocities as V, and Vp, respectively. The respective straight lines of the graph make angles 30° and 60°, respectively with the x-a… | UPSC CAPF 2026 Q No 114

Accepted Answer: (A) 20/3 m/s

Topic Covered: Physics

Key Concept: Mechanics, electricity, waves and thermodynamics

The slope of a velocity-time graph equals acceleration. Thus V = at = 10 tanθ, and subtracting the two final velocities gives the required value.

The key is to apply the central fact, formula, definition or relationship tested in the question and then eliminate alternatives that do not satisfy it.