Turn on thread page Beta

Why hasn't the tension in the wire changed? watch

    • Thread Starter

    Have posted the full question and solution. For part ii) shouldn't the tension in the wire no longer be 1488N since the acceleration has changed? Many thanks
    Name:  43.PNG
Views: 9
Size:  45.7 KB
    Attachment 725246725248
    Attached Images
    • Community Assistant
    • Political Ambassador

    Community Assistant
    Political Ambassador
    Well no because the force acting opposite to the direction of the object's motion has changed (resistance has increased). Acceleration is directly proportional to the force applied (if the mass of the objects are the same, where k = 1/m), so a greater resistance force means a smaller net upwards force, and therefore a smaller acceleration.

    The tension in the wire hasn't changed because the force applied to the load hasn't changed. The acceleration has changed because the net force is lower due to the forces resisting the motion of the object, but the total force remains unchanged.
Submit reply
Turn on thread page Beta
Updated: February 16, 2018

University open days

  • University of Chichester
    Multiple Departments Undergraduate
    Thu, 25 Oct '18
  • Norwich University of the Arts
    Undergraduate Open Days Undergraduate
    Fri, 26 Oct '18
  • University of Lincoln
    Open Day Undergraduate
    Sat, 27 Oct '18
Who do you think it's more helpful to talk about mental health with?
Useful resources

Make your revision easier


Maths Forum posting guidelines

Not sure where to post? Read the updated guidelines here


How to use LaTex

Writing equations the easy way


Best calculators for A level Maths

Tips on which model to get

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