A Ball Is Hit At An Angle Of 30 Degree And It Reaches A Distance Of 50 M. Given The Same Initial Velocity, At What Other Angle Should A Ball Be Hit To

A ball is hit at an angle of 30 degree and it reaches a distance of 50 m. Given the same initial velocity, at what other angle should a ball be hit to reach the same distance?

A. 15 degree
B. 45 degree
C. 60 degree
D. 75 degree

 

Good Day

Problem:

A ball is hit at an angle of 30 degree and it reaches a distance of 50 m. Given the same initial velocity, at what other angle should a ball be hit to reach the same distance?

Answer:

C. 60 degree

Trajectories at angles 15° and 75° have similar ranges. Trajectories at angles 30° to 60° almost have similar ranges but longer than trajectories at angles 15° and 75°. Trajectories whose angle closest to or at 45° covered the longest range.

The  trajectories are still a result of a constant horizontal velocity and a "vertical motion" of constant  acceleration.

Hope it helps...=)