Question

Two bullets are fired simultaneously uphill parallel to an inclined plane. The bullets have different masses and different initial velocities. Which will strike the plane first?

• A. The fastest one
• B. The heaviest one
• C. The lightest one
• D. They strike the plane at the same time

Answer 1

Answer: (D)

They strike the plane at the same time

Answer 2

Since v_1Y = v_2Y = 0

And Y₁ = Y₂ = – Y

(a_1Y = a_2Y = – g cos q )

Hence from, y = vt + $\frac{1}{2}$at²

Time taken for both the bullets will be same.