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2. ### Uniform acceleration!~

but i do average speed first still right??im confsued about the midpoint interval :confused:
3. ### Uniform acceleration!~

yeah but then on question number 3... it says.. the values you calculaed are the average speeds for the time interval, not the speed of the interval. To be more percise, the average speed is the speed at the midpoint of each time interval, and should be plotted there instead of at the end of...
4. ### Uniform acceleration!~

yeah but then on question number 3... it says.. the values you calculaed are the average speeds for the time interval, not the speed of the interval. To be more percise, the average speed is the speed at the midpoint of each time interval, and should be plotted there instead of at the end of...
5. ### Our class has only completed ~50% of the Physics B Curriculum

wats AP physics??
6. ### Force help me please =)

good job:wink:
7. ### Uniform acceleration!~

Homework Statement Time(s)| Distance(cm) from start 0 | 0 0.1 | 0.6 0.2 | 2.4 0.3 | 5.4 0.4 | 9.6 0.5 | 15 0.6 | 21.6 0.7 | 29.4 0.8 |38.4 0.9 |48.6 1 | 60 1.1 |72.6 1.2 |86.4 1.3 | 101.4 1.4 |117.6 1.5...
8. ### Hi what formula do i use to find for my question

do i use Kinematic Equations in grade 10 physics?
9. ### Hi what formula do i use to find for my question

huh wat is that?:confused: :confused: :confused:
10. ### Hi what formula do i use to find for my question

do u know if there's a site that tells you all the formulas like that so i can memorize them?
11. ### Hi what formula do i use to find for my question

yes i am i little bit.. :cry:
12. ### Hi what formula do i use to find for my question

i kno v2-v1... but i need to find the initial velocity..mean v1 right?? so how do find v1!
13. ### Hi what formula do i use to find for my question

how am i going to get the initial velocity? with a=delta v/delta t??
14. ### Hi what formula do i use to find for my question

dleta v means change in velocity:rofl:
15. ### Hi what formula do i use to find for my question

Hmm... is it a=delta v/delta t?:confused:
16. ### Hi what formula do i use to find for my question

well I am saying i need to find v1...i already kno the acceleration formula...its a=delta v/delta t...:uhh:
17. ### Hi what formula do i use to find for my question

Homework Statement in a final burst of energy near the end of a bike race, Julia accelerates at 0.32 m/s^2 north for 15 s, attaining a final speed of 18.6 m/s south. what was Julia's initial velocity and how far did she travel while accelerating? The Attempt at a Solution In this case I think...

Thanks alot!
19. ### What's Uniform acceleration?

yes it did! wow
20. ### What's Uniform acceleration?

What's Uniform acceleration?? Can anybody please tell me or explain to me an easy way of what uniform acceleration is? I don't understand what my teacher is telling us!:cry:
21. ### I with the formula pls

oh i never knew that lol! thnx:eek:
22. ### I with the formula pls

oh ok thnx:tongue:
23. ### I with the formula pls

but do u kno how i would do deceleration?
24. ### I with the formula pls

ohh, yes i forgot about that! thanks !
25. ### I with the formula pls

v1 and v2 : velocity there's only seconds and one velocity...
26. ### I with the formula pls

if so, I am not sure how i would get the v1 and v2
27. ### I with the formula pls

umm ok so to calculate a) the braking distance...would i use the a= delta v/delta t formula? If so then what do i use next?
28. ### I with the formula pls

yes , i know those formula but thanks for pointing those out:tongue: But I'm a little confused on how to find the deceleration!
29. ### Anyone know where I can get previous years' AP Physics C exams?

oh yes and antiderivative if you do send them to people thanks a lot for taking time.
30. ### Anyone know where I can get previous years' AP Physics C exams?

yes I am interested in those too, if you do happened to have it please send an email to me! Thanks
31. ### I with the formula pls

Homework Statement When a car is being tested, it also has a braking test done/ In one such test a car took 3.0 s to stop from 40 m/s. Calculate a) the braking distance b) the deceleration The Attempt at a Solution first off I'm not sure how to find the braking distance and what...
32. ### Is this the correct formula that im using for this question?

kk, thanks a bunch:tongue2:
33. ### Is this the correct formula that im using for this question?

what do you mean by working out the acceleration?
34. ### Is this the correct formula that im using for this question?

but the question asks for time
35. ### Im not sure if this is the correct formula for this question, corect me

Okay...thanks for taking your time :rolleyes:
36. ### Im not sure if this is the correct formula for this question, corect me

Yeah, so it's 23 but i was just saying...how would i put that in the formula in the proper way... delta t= delta v/a, delta t= (40-12)/5.0s, delta t =28m/s /5.0s = 5.6s therefore the rocket traveled for 5.6 s?
37. ### Im not sure if this is the correct formula for this question, corect me

the knowns are velocity and acceleration, yeah i know that you substitute them but would i do (40-12) to find the velcoity? so like for (40-12) do i plug that in velocity together?
38. ### Im not sure if this is the correct formula for this question, corect me

Thanks neutrino.. but would i do (40-12) to find the velcoity?
39. ### Is this the correct formula that im using for this question?

1. Homework Statement hi this is the problem: the burning of the second stage of a two stage toy rocket takes the rocket from 12 m/s to 40 m/s in 5.0s. How far does the rocket during this time? 2. Homework Equations would i use delta t= delta v/a ? would the given info be.. delta v1=...

sorry , but i think you must be patient because all the homework helpers are helping others too. Please just wait and do your other homework questions.
41. ### Im not sure if this is the correct formula for this question, corect me

Im not sure if this is the correct formula for this question, please corect me Homework Statement hi this is the problem: the burning of the second stage of a two stage toy rocket takes the rocket from 12 m/s to 40 m/s in 5.0s. How far does the rocket during this time? Homework Equations...
42. ### Hi, im having trouble finding out what formula i should use for this physics question

Alright, thanks a lot cristo for ur help and KingNothing for the formula. Thanks.
43. ### Hi, im having trouble finding out what formula i should use for this physics question

oh so would i just do 39-27? which is 12 m/s?
44. ### Hi, im having trouble finding out what formula i should use for this physics question

But if i was to use a=delta v/delta t .. how do i put to veclotiys? 39 m/s to 27 m/s
45. ### Hi, im having trouble finding out what formula i should use for this physics question

thanks KingNothing
46. ### Hi, im having trouble finding out what formula i should use for this physics question

but we usually use the average velocity=delta d/delta t formula.. oh..i fthink its this formula a=delta t + v2-v1 is this correct?
47. ### Hi, im having trouble finding out what formula i should use for this physics question

umm well my teacher taught us this new displacement formula but i dunt think its related to the question i need help with .. but this is the formula he taught us: d= v1 deltat+1/2 a(deltat)2 sorry i dunt kno how to make the traingle for delta and the arrow heads... I am new to this
48. ### Hi, im having trouble finding out what formula i should use for this physics question

Homework Statement Swati was driving her car over the speed limit when an oncoming car car flashes its lights warning her of a radar trap ahead. She decelerates from 39 m/s to 27 m/s in 6.0 s. What deceleration did her brakes apply? - I am not sure what formula to use so does anyone have a...