Two projectiles, A and B, are launched with the same speed from a tower. Projectile A is launched at an angle of 30° above the horizontal, and projectile B at an angle of 30° below the horizontal. Just before their impact point
A) the velocity of A is larger than the velocity of B.
B) the velocity of A is the same as the velocity of B.
C) the velocity of A is smaller than the velocity of B.
D) both velocities are zero.

Question

Quizplus · Accepted Answer

The velocities of projectiles A and B just before impact are the same because they were launched at the same speed and their launch angles are symmetrical with respect to the horizontal. The effects of gravity on their speeds are identical but in opposite directions, leading to them having the same speed upon impact.

Two Projectiles, a and B, Are Launched with the Same