Formula for Projectile Motion?

AI Thread Summary
A clear understanding of projectile motion requires familiarity with multiple equations rather than a single formula. Key formulas include Vx = x/t, x = vt, y = Vgt + 1/2gt^2, v = voy + gt, and vy^2 = voy + 2gy. Additional essential equations are v = u + at, s = ut + 0.5at^2, and v^2 = u^2 + 2as. Relying solely on memorization without comprehension can hinder problem-solving abilities. Mastery of these concepts is crucial for success in physics.
save00us
Messages
2
Reaction score
0
Can someone post a decent formula? I can't seem to find something that I can understand.
 
Physics news on Phys.org
There isn't a magic formula, if you don't understand an equation for motion, you need to learn why.


What do you want to know about projectile motion?
 
I just need the formulas..i only have notes on formulas like Vx = x/t, x = vt, y = Vgt + 1/2gt^2, v = voy + gt, vy^2 = voy + 2gy. I wasn't able to copy my teachers notes on the other formulas due to my nearsightedness and her handwriting was so small I can barely see it.
 
You just need 3 equations.
v = u + at
s = ut + 0.5at^2
v^2 = u^2 + 2as
 
save00us said:
I just need the formulas..i only have notes on formulas like Vx = x/t, x = vt, y = Vgt + 1/2gt^2, v = voy + gt, vy^2 = voy + 2gy. I wasn't able to copy my teachers notes on the other formulas due to my nearsightedness and her handwriting was so small I can barely see it.

There is no such thing as ONE formula that fits all scenarios. If you think there is, then there's a good chance you'll not do well with such problems, because you are hoping to only do a plug-and-chug without any understanding.

If this is related to a schoolwork, it should have been done in the HW/Coursework forum.

Zz.
 

Thread 'Average velocity as a weighted mean'

Hello everyone, Consider the problem in which a car is told to travel at 30 km/h for L kilometers and then at 60 km/h for another L kilometers. Next, you are asked to determine the average speed. My question is: although we know that the average speed in this case is the harmonic mean of the two speeds, is it also possible to state that the average speed over this 2L-kilometer stretch can be obtained as a weighted average of the two speeds? Best regards, DaTario
View full post »

Thread '1:1 versus 2:1 Mechanical Advantage debate'

The rope is tied into the person (the load of 200 pounds) and the rope goes up from the person to a fixed pulley and back down to his hands. He hauls the rope to suspend himself in the air. What is the mechanical advantage of the system? The person will indeed only have to lift half of his body weight (roughly 100 pounds) because he now lessened the load by that same amount. This APPEARS to be a 2:1 because he can hold himself with half the force, but my question is: is that mechanical...
View full post »

Thread 'Newton's first law?'

Some physics textbook writer told me that Newton's first law applies only on bodies that feel no interactions at all. He said that if a body is on rest or moves in constant velocity, there is no external force acting on it. But I have heard another form of the law that says the net force acting on a body must be zero. This means there is interactions involved after all. So which one is correct?
View full post »

Similar threads

Insights Quaternions in Projectile Motion
Replies
2
Views
998
How to Master Projectile Motion Without Quadratics
Replies
8
Views
3K
Projectile Motion with a backwards Rotation/Tumble
Replies
16
Views
2K
How to Solve Projectile Motion Problems in One or Two Lines
Replies
1
Views
3K
Does anyone know the formula to find the angle after a collision?
Replies
6
Views
2K
I If we throw a ball with initial velocity v0, is there a force?
Replies
3
Views
2K
Projectile Intercept Math & Trigonometry
Replies
4
Views
2K
Projectile Motion: Path's length?
Replies
18
Views
3K
The motion of a skateboarder along and above a ramp
Replies
2
Views
559
Projectile motion with non-uniform gravity.
Replies
1
Views
1K

Hot Threads

Recent Insights

Back
Top