School Projectile Motion Problem

In summary, the conversation discusses how to solve a problem involving a particle moving along a parabolic path with a given velocity and inclination. The person seeking help initially attempted to solve it using vectors, but their friend suggested using geometry instead. The final solution involves finding the slope of the line tangent to the second point on the parabolic path. The slope can also be expressed as -1/m, where m is the slope of the line perpendicular to the tangent line at the first point.
  • #1
jaysinghrath
1
0
If a point of the parabolic path the velocity be u and the inclination to the horizon be θ, at what time the particle is moving at right angle to its former direction.
I was trying to solve it using vectors.
My friend gave me a clue of applying some geometry to the parabolic path given below:-
attachment.php?attachmentid=63307&stc=1&d=1382802353.jpg

He is definite that he solver it and the answer is = ucosec(θ)/g which is matching with the answer solving via vectors. Now he is not in contact, I was trying to solve this question.
PLZ help me
 

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  • #2
You are required by the forum's rules to show your attempt to get help here.
 
  • #3
If you recall your functions classes, a line perpendicular to a line with slope m has slope - 1/m. What 's the slope of the line tangent to the first point on your diagram? So what should be the slope of the second point?

Can you write another expression for the slope at the second point?
 

1. What is "School Projectile Motion Problem"?

"School Projectile Motion Problem" is a physics problem that involves calculating the motion of an object that is launched or thrown through the air in a school setting. It is typically used to teach students about the concepts of trajectory, velocity, and acceleration.

2. How do you solve a "School Projectile Motion Problem"?

To solve a "School Projectile Motion Problem", you will need to use the equations of motion for projectile motion, which include the initial velocity, angle of launch, and acceleration due to gravity. You will also need to break down the problem into horizontal and vertical components and use trigonometric functions to calculate the values.

3. What are the key concepts involved in a "School Projectile Motion Problem"?

The key concepts involved in a "School Projectile Motion Problem" include velocity, acceleration, gravity, and trajectory. Velocity is the speed and direction of the object, acceleration is the rate of change of velocity, gravity is the force that pulls the object towards the ground, and trajectory is the path that the object follows.

4. What are some real-life examples of "School Projectile Motion Problems"?

Real-life examples of "School Projectile Motion Problems" can include throwing a ball, shooting a basketball, or launching a rocket. These situations involve calculating the motion of an object through the air and can be solved using the same principles as a "School Projectile Motion Problem".

5. How does understanding "School Projectile Motion Problems" relate to everyday life?

Understanding "School Projectile Motion Problems" can help individuals to understand and predict the motion of objects in everyday life. For example, it can be used to calculate the trajectory of a ball when playing sports or the distance a car will travel when braking. It also helps to develop critical thinking and problem-solving skills that can be applied to various situations.

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