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# Mechanics- Suvat help needed watch

1. A particle P is moving on the x-axis with constant deceleration 4ms-2. At time t=0, P passes through the origin O with velocity 14ms-1 in the positive direction. The point A lies on the axis and OA=22.5m.
Find:

a) Difference between the times when P passes through A
- I have correctly worked this out as 2 seconds between t=4.5 and t=2.5

b) Total difference travelled by P during the interval between these times
- Answer is 4 metres but I don't know how to work it out.

Any help would be greatly appreciated. Thank you!!
2. (Original post by ango)
A particle P is moving on the x-axis with constant deceleration 4ms-2. At time t=0, P passes through the origin O with velocity 14ms-1 in the positive direction. The point A lies on the axis and OA=22.5m.
Find:

a) Difference between the times when P passes through A
- I have correctly worked this out as 2 seconds between t=4.5 and t=2.5

b) Total difference travelled by P during the interval between these times
- Answer is 4 metres but I don't know how to work it out.

Any help would be greatly appreciated. Thank you!!
It may help to break it up in two parts: one where the velocity is positive (I.e. The particle is moving from O to A and beyond), and when it is moving in the opposite direction.
3. Work out the velocity at A then find the distance until its velocity is 0, double that.

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The text passage contains a mechanics problem involving a particle moving with constant deceleration, and it asks for the difference in times when the particle passes through a specific point and the total distance traveled during that interval. The user has provided their own answers and is seeking help with part (b).
single_question_with_answer
Given a text passage, determine:
    1. If it contains a mathematical question (including word problems or calculations)
    2. If an answer to that mathematical question is provided in the text

First, describe the content structure you found in 1-2 sentences.

Then provide your analysis in the following format:
TYPE: <one of the following values>
- NO_QUESTION
- SINGLE_QUESTION
- SINGLE_QUESTION_WITH_ANSWER
- MULTIPLE_QUESTIONS
- MULTIPLE_QUESTIONS_WITH_ANSWERS
system
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 You are Here: Home >< A-levels

# Mechanics- Suvat help needed watch

1. A particle P is moving on the x-axis with constant deceleration 4ms-2. At time t=0, P passes through the origin O with velocity 14ms-1 in the positive direction. The point A lies on the axis and OA=22.5m.
Find:

a) Difference between the times when P passes through A
- I have correctly worked this out as 2 seconds between t=4.5 and t=2.5

b) Total difference travelled by P during the interval between these times
- Answer is 4 metres but I don't know how to work it out.

Any help would be greatly appreciated. Thank you!!
2. (Original post by ango)
A particle P is moving on the x-axis with constant deceleration 4ms-2. At time t=0, P passes through the origin O with velocity 14ms-1 in the positive direction. The point A lies on the axis and OA=22.5m.
Find:

a) Difference between the times when P passes through A
- I have correctly worked this out as 2 seconds between t=4.5 and t=2.5

b) Total difference travelled by P during the interval between these times
- Answer is 4 metres but I don't know how to work it out.

Any help would be greatly appreciated. Thank you!!
It may help to break it up in two parts: one where the velocity is positive (I.e. The particle is moving from O to A and beyond), and when it is moving in the opposite direction.
3. Work out the velocity at A then find the distance until its velocity is 0, double that.

Turn on thread page Beta
TSR Support Team

We have a brilliant team of more than 60 Support Team members looking after discussions on The Student Room, helping to make it a fun, safe and useful place to hang out.

This forum is supported by:
Updated: October 22, 2017
Today on TSR

### He lied about his age

Thought he was 19... really he's 14

### University open days

1. University of Bradford
Wed, 25 Jul '18
2. University of Buckingham
Psychology Taster Tutorial Undergraduate
Wed, 25 Jul '18
3. Bournemouth University
Clearing Campus Visit Undergraduate
Wed, 1 Aug '18
Poll
Help with your A-levels

## All the essentials

### Student life: what to expect

What it's really like going to uni

### Essay expert

Learn to write like a pro with our ultimate essay guide.

### Uni match

Our tool will help you find the perfect course for you

### Create a study plan

Get your head around what you need to do and when with the study planner tool.

### Resources by subject

Everything from mind maps to class notes.

### Degrees without fees

Discover more about degree-level apprenticeships.

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## Study help links and info

Can you help? Study help unanswered threadsRules and posting guidelines

## Groups associated with this forum:

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The Student Room, Get Revising and Marked by Teachers are trading names of The Student Room Group Ltd.

Register Number: 04666380 (England and Wales), VAT No. 806 8067 22 Registered Office: International House, Queens Road, Brighton, BN1 3XE
user
The text passage contains a mechanics problem involving a particle moving with constant deceleration, and it asks for the difference in times when the particle passes through a specific point and the total distance traveled during that interval. The user has provided their own answers and is seeking help with part (b).

TYPE: SINGLE_QUESTION_WITH_ANSWER