Isaac Physics Circular Motion Problem
I'm stuck on part B of this question and here is my working. I tried several times and whilst I haven't spotted a mistake with my approach, isaac physics says my answer is incorrect.
(edited 11 months ago)
Reply 1
8
The answer I've calculated with my expression is 4.30626=4.3. It is when I put 4.3 to the answer box, isaac physics says it's wrong
Reply 2
21
Original post
by sirius_canisThe answer I've calculated with my expression is 4.30626=4.3. It is when I put 4.3 to the answer box, isaac physics says it's wrong
To save some time, what did you get for part a?
Reply 3
8
1.4 rad/s, which is correct
Reply 4
21
Original post
by sirius_canis1.4 rad/s, which is correct
Looks like it wants you to use the unrounded w (squared) from part a, but your working is correct
Reply 5
8
Thanks, finally solved it. Usually if Isaac wants me to use the unrounded value, there will be a hint saying "use unrounded value in part A", but there's no such hint in this question which made me stuck for quite a bit. 
Reply 6
21
Original post
by sirius_canisThanks, finally solved it. Usually if Isaac wants me to use the unrounded value, there will be a hint saying "use unrounded value in part A", but there's no such hint in this question which made me stuck for quite a bit.
i guess part a) is really getting
w^2 = f(g)
where f is fairly simple so you can just use that in b) to get
m1/m2 = h(g)
rather tha having to sub the rounded value for w. Obv if the equations are well behaved it doesnt make much difference, but here it does.
Quick Reply
Related discussions
- How on earth do I apply my knowledge in A-level Physics
- A level physics circular motion
- PAT and ESAT Prep (physics tests)
- physics question
- Vast confusing regarding Simple Harmonic Motion and Circular Motion
- Ball Dropped Onto Spring
- Advanced Physics Project
- Y13 GYG (Goal: UCL Architecture)
- Further mechanics 2 options overlapping with physics rather than stats?
- Question regarding particle tracks
- Question regarding density and circular motion
- M's Year 13 Lock in GYG!!
- Natural sciences
- Lamina
- Isaac Physics Maths Question
- Isaac physics help
- Oxford Preparing for the PAT course
- Senior Physics Challenge Isaac Physics
- which exam board is most similar to WJEC further maths??
- GYG: Summer of turning delusions into reality
Latest
Trending
Last reply 8 months ago
Help with british physics olympiad compuational challenge (BphO)Last reply 9 months ago
Is anyone trying to qualify for the International physics OlympiadLast reply 12 months ago
British Physics Olympiad (BphO) round 1, November 2024Physics Study Help
33
108
How The Student Room is moderated
To keep The Student Room safe for everyone, we moderate posts that are added to the site.
