Mechanical Q: Find Air Resistance Force from .750kg Proj. at 18.0m/s

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To find the average force due to air resistance on a .750kg projectile shot upward at 18.0m/s, the maximum height reached is 11.8m. The gravitational force acting on the projectile is calculated using its mass and acceleration due to gravity. The work-energy principle can be applied to relate the initial kinetic energy, potential energy at maximum height, and the work done against air resistance. By determining the difference between the initial kinetic energy and the potential energy at the peak height, the average force of air resistance can be calculated. The discussion emphasizes the importance of applying physics principles to solve for air resistance in projectile motion.
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A projectile has a mass of .750kg and is shot straight up with an initial velocity of 18.0m/s. If the projectile rises to a max height of 11.8m, determine the magnitude of the average force due to air resistance. Can anyone help me with this?
 
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