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blazeuofa
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Homework Statement
A projectile is fired at a speed of 45 m/s at an angle of 40 degrees above horizontal. Determine the magnitude and direction of its velocity 4 seconds later.
Homework Equations
ax=0 ay=-g
needlottahelp said:find the vy and the vx after 4 seconds and find the resultant vector.
Projectile motion is the motion of an object that is thrown or launched into the air and then moves under the force of gravity. It follows a curved path called a parabola.
The magnitude of projectile motion is determined by the initial velocity and angle of launch. The greater the initial velocity, the greater the magnitude of the motion. The angle of launch also affects the magnitude, with a higher angle resulting in a greater vertical displacement.
The direction of projectile motion is determined by the initial angle of launch. The object will always move along the same path as the angle of launch, so a higher angle will result in a greater vertical displacement and a lower angle will result in a smaller vertical displacement.
The magnitude and direction of projectile motion are affected by factors such as air resistance, wind, and the shape and mass of the object. These factors can alter the trajectory and speed of the projectile, resulting in a different magnitude and direction of motion.
Horizontal projectile motion is motion along the x-axis, where the initial velocity is entirely horizontal and there is no initial vertical velocity. Vertical projectile motion is motion along the y-axis, where the initial velocity has both horizontal and vertical components. Additionally, the acceleration due to gravity affects vertical motion, but not horizontal motion.