Question

Predict how the range of the projectile will change when you change the angle from 45∘, keeping the speed constant.
Predict how the range of the projectile will change when you change the angle from , keeping the speed constant.

A. It increases with either an increase or decrease in angle.

B. The range increases with increase in angle and decreases with decrease in angle.

C. The range increases with decrease in angle and decreases with increase in angle.

D. It decreases with either an increase or a decrease in angle.

Answer 1

ignoring air drag, maximum range is at 45 degrees.
http://www.wired.com/2010/09/maximum-range-in-projectile-motion/

Answer 2

so the answer would be A

Answer 3

The answer is D.