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Gingerclaire_
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Dave Johnson, the bronze medallist at the 1992 Olympic decathalon in Barcelona, leaves the ground at the high jump with vertical velocity component 6 m/s. How far does his center of mass move up as he makes the jump?
BvU said:Hello Ginger, welcome to PF :)
Nice exercise. Somewhere along the line the template fell away. It's use is mandatory for good reasons. (Read the guidelines).
In this case you posted only the problem statement. What equations, tools, stuff have you available to tackle it ? Place them under 2). And what have you tried and what came out ? Put that under 3). Help is on the way...
1. Homework Statement
2. Homework Equations
3. The Attempt at a Solution
A guy jumps off the ground. What forces are working on him so he doesn't go into orbit around the earth?Gingerclaire_ said:Do you do a kinetic energy equation? Sorry I think I'm making it more difficult for myself here
Work is not a force. Once the jumper leaves the ground, there is only one thing affecting his body. What is it? If you pick up a book and drop it on the floor, why does the book fall?Gingerclaire_ said:So there is a force acting upward - work. Am I right?
Projectile motion is the motion of an object that is projected or thrown into the air and moves along a curved path under the influence of gravity. It is a combination of horizontal and vertical motion.
The factors that affect projectile motion include the initial velocity, the angle of projection, the air resistance, and the gravitational force. These factors determine the shape and distance of the projectile's trajectory.
The trajectory of a projectile can be calculated using the equations of motion, which take into account the initial velocity, the angle of projection, and the acceleration due to gravity. The trajectory can also be determined using mathematical models or by conducting experiments.
Horizontal motion in projectile motion refers to the motion of the object along the horizontal axis, which remains constant unless acted upon by an external force. Vertical motion, on the other hand, refers to the motion of the object along the vertical axis, which is affected by the force of gravity.
Some real-life examples of projectile motion include throwing a ball, shooting a basketball, launching a rocket, and throwing a javelin. These objects all follow a curved path due to the force of gravity acting upon them.