Question

multiple choice 1 point
a student throws a baseball upwards at an angle of 60 degrees to the horizontal. the initial horizontal and vertical components are 12.5 and 21.7 m/s, respectively.

according to the information and diagram shown above. at position c, the ball will have a horizontal velocity of -
85 m/s
21.7 m/s
12.5 m/s
25.0 m/s

Explanation:

Step1: Recall projectile motion concept

In projectile motion, horizontal velocity remains constant in the absence of horizontal acceleration (neglecting air - resistance).

Step2: Identify initial horizontal velocity

The initial horizontal velocity is given as $12.5$ m/s. Since there is no horizontal acceleration, the horizontal velocity at any point (including position C) is the same as the initial horizontal velocity.

Answer:

$12.5$ m/s