Hey there! Sign in to join this conversationNew here? Join for free
    • Thread Starter
    Offline

    9
    ReputationRep:
    Two trains, A and B, are moving on straight horizontal tracks which run alongsideeach other and are parallel. The trains both move with constant acceleration. At timet ¼ 0 , the fronts of the trains pass a signal. The velocities of the trains are shown inthe graph below.


    Find the distance between the fronts of the two trains when they have the samevelocity and state which train has travelled further from the signal.[3 marks](b) Find the time when A has travelled 9 metres further than B. [8 Marks]

    This is basically a question in AQA mechanics 1B, question 8 that I am unsure on how to solve both A and B. Any help is grateful.
    Link:http://filestore.aqa.org.uk/subjects...P-QP-JUN15.PDF [Question 8]
    Offline

    3
    ReputationRep:
    This is an area under the graph question. At t=8 and v=5.8 you have enough info to find the area for each train. The distance difference is the area difference. For part b you are still working areas. Set up an equation with area sums like part a but with t instead of 8. Add 9 to the area for one train and then solve for t.
 
 
 
  • See more of what you like on The Student Room

    You can personalise what you see on TSR. Tell us a little about yourself to get started.

  • Poll
    Have you ever participated in a Secret Santa?
    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
  • See more of what you like on The Student Room

    You can personalise what you see on TSR. Tell us a little about yourself to get started.

  • 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

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