Hey there! Sign in to join this conversationNew here? Join for free

Help with a simple mechanics question?? Using the SUVAT equations watch

    • Thread Starter
    Offline

    0
    ReputationRep:
    Hey guys, please help me with this, my answer is ?34 and -?34 can't see why I am wrong, the answer is apparently meant to be 4 and -4 but the answers are sometimes wrong... Anyways the question is...

    A Particle P moves in a straight ling across a horizontal surface with an acceleration of 1.8 meters per second. The particle P passes through a point A with a velocity of 5 meters per second. It then passes through the point B twice, where the distance between A and B is 2.5 meters.

    Thanks for any help guys
    Offline

    1
    ReputationRep:
    What is the actual question? :holmes:. You seem to have forgotten to tell us.
    Offline

    12
    ReputationRep:
    ^^ This.

    Also, does it tell you which direction the acceleration is acting?
    • Thread Starter
    Offline

    0
    ReputationRep:
    that is the question... and I assumed by 1.8 it means in the positive direction as the question says it is a horizontal surface... I have triple checked and I reckon that the answer in the book is wrong, it is made by one of our teachers at college and seen as each of our topics has around 30 questions which he has to write and answer himself, generally he tends to make mistakes occasionally.
    Offline

    0
    ReputationRep:
    I dont really understand what your trying to find,cant u say that its a negative acceleration??
 
 
 
Poll
Do you agree with the PM's proposal to cut tuition fees for some courses?
Useful resources

Make your revision easier

Maths

Maths Forum posting guidelines

Not sure where to post? Read the updated guidelines here

Equations

How to use LaTex

Writing equations the easy way

Student revising

Study habits of A* students

Top tips from students who have already aced their exams

Study Planner

Create your own Study Planner

Never miss a deadline again

Polling station sign

Thinking about a maths degree?

Chat with other maths applicants

Can you help? Study help unanswered threads

Groups associated with this forum:

View associated groups

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

Write a reply...
Reply
Hide
Reputation gems: You get these gems as you gain rep from other members for making good contributions and giving helpful advice.