Two balls,projected at different times so they don't collide,have trajectories A and B,as shown below. Which statement is correct? A)v_0B must be greater than v_0A. B)Ball A is in the air for a longer time than ball B. C)Ball B is in the air for a longer time than ball A. D)Ball B has a greater acceleration than ball A. E)Ball A has a greater acceleration than ball B.

Question

Quizplus · Accepted Answer

Ball B has a longer trajectory, which means it spends more time in the air than ball A. Therefore, statement C is the correct answer. Statement A is incorrect because the initial speeds and launch angles are the same for both balls. Statement B is incorrect because ball B reaches the ground first, but spent more time in the air. Statements D and E are also incorrect because we do not have enough information to determine the accelerations of the two balls.

Two Balls,projected at Different Times So They Don't Collide,have Trajectories