Marcia uses a bow to shoot an arrow with initial velocity of magnitude v₀ and at an angle θ above the horizontal. When the arrow returns to the same height from which it started, A) the speed of the arrow is twice v₀. B) the speed of the arrow is 9.8 times larger than v₀. C) the speed of the arrow is again v₀. D) the speed of the arrow is v₀. E) the speed of the arrow is v₀/ .

Question

Quizplus · Accepted Answer

The speed of the arrow will be the same as the initial velocity magnitude v₀ because there are no external forces acting horizontally that can change the horizontal velocity of the arrow. Only gravity acts vertically to change the vertical velocity of the arrow. Therefore, the arrow will return to the same height with the same speed as it had initially.

Marcia Uses a Bow to Shoot an Arrow with Initial