Under what conditions will the projectile have the greatest velocity when it hits the ground?
the initial V is the greatest , ignore air resistance
Ugh. I just got this as part of a lab question. It makes no sense what-so-ever in context. NEVER TAKE ONLINE PHYSICS IN HIGHSCHOOL!!! Lol.
same here.I'm panicking because I don't understand anything in that class. Never again will I take physics online.
PHYSICS IN GENERAL SUCKS! TAKING IT ONLINE? A MILLION TIMES WORSE. BEWARE! ONE OF MY WORST EDUCATIONAL CHOICES.
To determine the conditions under which a projectile will have the greatest velocity when it hits the ground, we need to consider the factors that influence projectile motion.
1. Launch Angle: The launch angle is the angle at which the projectile is projected into the air. The greatest velocity is achieved when the launch angle is 45 degrees. This is because at this angle, the projectile has an equal vertical and horizontal velocity. Any deviation from 45 degrees will result in a decrease in the horizontal velocity component.
2. Initial Velocity: The initial velocity is the speed at which the projectile is launched. The greater the initial velocity, the greater the projectile's final velocity when it hits the ground.
3. Air Resistance: In theoretical calculations, we usually assume that air resistance is negligible. However, in real-world scenarios, air resistance can significantly impact the projectile's motion. Under conditions where air resistance is minimal or absent, the projectile will have the greatest velocity when it hits the ground.
4. Elevation and Gravitational Field Strength: The elevation, or height above the ground, affects the time of flight of the projectile. The higher the elevation, the longer the projectile will remain in the air, allowing it to travel further horizontally and therefore potentially have a greater velocity when it hits the ground. Similarly, the strength of the gravitational field will also affect the time of flight, influencing the speed at which the projectile returns to the ground.
In summary, the conditions under which a projectile will have the greatest velocity when it hits the ground are a launch angle of 45 degrees, a higher initial velocity, minimal air resistance, and a higher elevation with a stronger gravitational field.