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In summary, the conversation is about a physics project that involves creating a comic to explain a kinematics concept to Grade 5 students. The topic is on projectile motion and the specific question being addressed is what factors would maximize the range of a javelin throw. The necessary variables and equations are discussed, and the concept of adding spin to the javelin is also mentioned.
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physicsNooB16
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So my physics project is about making a comic that answers a question (for Grade 5 kids) while answering an underlying kinematics concept. One example question that was given was: what factors produce a home run (max height, range)

So I was wondering about a similar question: What factors would maximize the range of a javelin throw. I was wondering what variables or information would I need to do this? I am new at physics and I am pretty slow so please help me out. Things that I will be looking for would be the d_x for range. The angle it is thrown at, etc and I am hoping on using famous five equations.

Also another thing is need is that that if I use the avg. V_i the players throw the javlein at, do i use sin and cos with the angle to figure out v_x and v_yi.

This is projectile motion right? :)
Sorry, if this is homework...

Sorry, for asking so many question
 
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physicsNooB16 said:
So my physics project is about making a comic that answers a question (for Grade 5 kids) while answering an underlying kinematics concept. One example question that was given was: what factors produce a home run (max height, range)

So I was wondering about a similar question: What factors would maximize the range of a javelin throw. I was wondering what variables or information would I need to do this? I am new at physics and I am pretty slow so please help me out. Things that I will be looking for would be the d_x for range. The angle it is thrown at, etc and I am hoping on using famous five equations.

Also another thing is need is that that if I use the avg. V_i the players throw the javlein at, do i use sin and cos with the angle to figure out v_x and v_yi.

This is projectile motion right? :)
Sorry, if this is homework...

Sorry, for asking so many question
This is a projectile motion problem. The range is given by:

[tex]R = V_0^2\sin{(2\theta_L)/g[/tex]

so immediately you can identify the launch angle that will give you the maximum range for a given initial javelin speed. See:http://hyperphysics.phy-astr.gsu.edu/hbase/traj.html"

Also, in order to keep the javelin pointed straight, which will reduce air friction, the thrower could put spin on the javelin (similar to a rifled bullet or a "spiral" football throw) and angle the nose a little off centre. This involves a little more complicated concept of angular motion or spin.

AM
 
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FAQ: Last edited by a moderator: May 3, 2017

What is the javelin throw?

The javelin throw is a track and field event where a long, thin spear called the javelin is thrown as far as possible. It is a part of the athletic events of the ancient Olympic Games and has been a modern Olympic event since 1908.

What is kinematics?

Kinematics is the branch of mechanics that studies the motion of objects without considering the forces that cause the motion. It involves analyzing the position, velocity, and acceleration of an object over time.

How does kinematics relate to the javelin throw?

Kinematics is essential in understanding and improving the technique of the javelin throw. It helps athletes analyze and adjust their movements to achieve maximum distance and accuracy in their throw.

What are some key factors that affect the javelin throw?

Some key factors that affect the javelin throw include the speed and angle of release, the athlete's strength and technique, and environmental conditions such as wind and temperature.

How is technology used in javelin throw and kinematics?

Technology, such as high-speed cameras and motion sensors, is used to capture and analyze the various movements and forces involved in the javelin throw. This data can then be used to improve an athlete's technique and performance.

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