Question

Figure shows four paths for a kicked football. Ignoring the effects of air on the flight, rank the paths according to initial horizontal velocity component, highest first

• A. 1, 2, 3, 4
• B. 2, 3, 4,1
• C. 3, 4, 1, 2
• D. 4, 3, 2, 1

Answer 1

Answer: (D)

4, 3, 2, 1

Answer 2

Horizontal distance (range) = horizontal; component of velocity $\times$ time period $\therefore$ Horizontal range $\alpha$ horizontal component of velocity. Horizontal range $R_{4}>R_{3}>R_{2}>R_{1}$ Therefore, horizontal velocity component, $\left(v_{H}\right)_{4}>\left(v_{H}\right)_{3}>\left(v_{H}\right)_{2}>\left(v_{H}\right)_{1}$