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Convinced I'm hopeless at maths at this point :)

If anyone would mind helping:

Here is the question:

https://hosting.photobucket.com/images/i/imagegold/Screenshot_2021-02-07_at_23.43.57.png?

I'm confused on what's happening with the times; for the second particle is the time t + 1 or t -1? Also, where would I go from here?
Reply 1
Avatar for NaBrO
NaBrO
OP
12
ayo boosting ze thread :hi:
Original post by NaBrO
If anyone would mind helping:

Here is the question:

https://hosting.photobucket.com/images/i/imagegold/Screenshot_2021-02-07_at_23.43.57.png?

I'm confused on what's happening with the times; for the second particle is the time t 1 or t -1? Also, where would I go from here?

Write your equations for the second particle with t' instead of t. What is the value of t' when t=1? Can you write t' in terms of t?
(edited 3 years ago)
Reply 3
Avatar for Shah99
Shah99
14
Maths is all about practise
Original post by NaBrO
If anyone would mind helping:

Here is the question:

https://hosting.photobucket.com/images/i/imagegold/Screenshot_2021-02-07_at_23.43.57.png?

I'm confused on what's happening with the times; for the second particle is the time t + 1 or t -1? Also, where would I go from here?

Since the second particle starts 1 s later, but arrives the same time, you can sub t -1 into the equation for second particle.
both particle travel the same distance, so use s = (u + v)t/2, substituting values for each particle and equating each expression, since s is the same.
Solve for t.
Reply 5
Avatar for NaBrO
NaBrO
OP
12
Original post by RogerOxon
Write your equations for the second particle with t' instead of t. What is the value of t' when t=1? Can you write t' in terms of t?

So I've done this... not really sure if it's correct.

First particle: s = 1/2 (u + v) t
s = 4t
Second: s = 1/2 (u + v) t
s = 6t'

6t' = 4t ...?
Original post by NaBrO
So I've done this... not really sure if it's correct.

First particle: s = 1/2 (u + v) t
s = 4t
Second: s = 1/2 (u + v) t
s = 6t'

6t' = 4t ...?

nearly there
t' = t - 1
Reply 8
Avatar for NaBrO
NaBrO
OP
12
Original post by Hallouminatus
t' = t - 1

6t - 6 = 4t
t = 4 :smile:
Let's hope that smiley face isn't in vain lol
Original post by NaBrO
6t - 6 = 4t
t = 4 :smile:
Let's hope that smiley face isn't in vain lol

6t - 6 = 4t is good, but...
Reply 10
Avatar for NaBrO
NaBrO
OP
12
Original post by Hallouminatus
6t - 6 = 4t is good, but...

t = 3.
what is my problem : )

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