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# M1 Exam Question help Watch

1. Hi I'm really struggling on part d...

Any help?
Many thanks!
2. (Original post by pygmypossum)
Hi I'm really struggling on part d...

Any help?
Many thanks!
What have you tried?
3. (Original post by Zacken)
What have you tried?
Well I know that the maximum speed is at 0.5 meters. So I tried using a V=u +at
With:
V=?
U-8sin30
A=-9.8
T=0.964
4. (Original post by pygmypossum)
Well I know that the maximum speed is at 0.5 meters. So I tried using a V=u +at
With:
V=?
U-8sin30
A=-9.8
T=0.964
Why don't you use v^2 = u^2 + 2as? Also, whilst h is 0.5, s the displacement from 1.2 m is not 0.5
5. (Original post by Zacken)
Why don't you use v^2 = u^2 + 2as? Also, whilst h is 0.5, s the displacement from 1.2 m is not 0.5
So:

v^2=(8sin30)^2+2*-9.8*-0.5???
6. (Original post by pygmypossum)
So:

v^2=(8sin30)^2+2*-9.8*-0.5???
s is not 0.5. Do you know what displacement means? What's your displacement if you move from 1.2 above the ground to 0.5 above the ground? How many metres have you displaced?
7. (Original post by Zacken)
s is not 0.5. Do you know what displacement means? What's your displacement if you move from 1.2 above the ground to 0.5 above the ground? How many metres have you displaced?
It is the distance you have traveled from the start point? Is it 0.7?
8. (Original post by pygmypossum)
It is the distance you have traveled from the start point? Is it 0.7?
It's -0.7.
9. (Original post by Zacken)
It's -0.7.
Sorry yes,
So I am doing v^2=(8sin(30))^2+2*-9.8*-0.7
v= 5.45??
10. (Original post by pygmypossum)
Sorry yes,
So I am doing v^2=(8sin(30))^2+2*-9.8*-0.7
v= 5.45??
11. (Original post by Zacken)
Thank you
12. (Original post by orange8120)
Thank you
I'm confused, you're not OP?
13. this is M2
14. (Original post by rigamortis345)
this is M2
Does it matter?
15. (Original post by Zacken)
Does it matter?
Yes, because if he is practising for M1 then he should be doing M1 questions, he does not need to do the question.
16. (Original post by rigamortis345)
Yes, because if he is practising for M1 then he should be doing M1 questions, he does not need to do the question.
It's probably just a typo in the title? How d'you know it's M2, by the way?
17. (Original post by Zacken)
It's probably just a typo in the title? How d'you know it's M2, by the way?
I have an exam on M2 in two months.
in M1 you only have to work out kinematics for one component, either horizontal or vertical, but in M2 its two components for the majority of questions, it does this by giving a particle an angle of elevation.
18. (Original post by rigamortis345)
I have an exam on M2 in two months.
in M1 you only have to work out kinematics for one component, either horizontal or vertical, but in M2 its two components for the majority of questions, it does this by giving a particle an angle of elevation.
Uhm, there are different exam boards...

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