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.
ignoring air drag, maximum range is at 45 degrees.
http://www.wired.com/2010/09/maximum-range-in-projectile-motion/
so the answer would be A
The answer is D.
To predict how the range of a projectile will change when you change the angle from 45 degrees, keeping the speed constant, you need to understand projectile motion.
Projectile motion is the motion of an object that is launched into the air and then moves along a curved path under the influence of gravity alone. This motion can be broken down into horizontal and vertical components.
The speed of the projectile is constant, meaning that the horizontal component of the velocity remains the same. However, the vertical component of the velocity changes with the angle of projection.
The range of a projectile is the horizontal distance traveled by the object before it hits the ground. It depends on the initial velocity, the angle of projection, and the acceleration due to gravity.
When the angle of projection is 45 degrees, the vertical and horizontal components of the velocity are equal, resulting in the maximum range. This is because the object spends an equal amount of time in the air and covers an equal distance horizontally and vertically.
Therefore, keeping the speed constant, if you increase or decrease the angle from 45 degrees, the range will decrease. This is because the vertical component of the velocity will increase or decrease respectively, causing the projectile to spend more or less time in the air and covering a shorter horizontal distance.
So, the correct answer is D. The range decreases with either an increase or a decrease in angle.