easy f=ma Watch

physicso
Badges: 13
Rep:
?
#1
Report Thread starter 5 years ago
#1
Hey. I've got this question which is stressing me as i've done tonnes of them in M1 but can't figure it out.


A car of mass 1400kg pulling a trailerof 400kg accelerates from rest to a speed of 9ms in a time of 60s.


Calculate the tension in the tow bar
0
reply
Stonebridge
Badges: 10
#2
Report 5 years ago
#2
(Original post by physicso)
Hey. I've got this question which is stressing me as i've done tonnes of them in M1 but can't figure it out.


A car of mass 1400kg pulling a trailerof 400kg accelerates from rest to a speed of 9ms in a time of 60s.


Calculate the tension in the tow bar
What is it you don't get?

How to calculate the acceleration from the data given using suvat, or how to use that acceleration in F=ma for force?
0
reply
physicso
Badges: 13
Rep:
?
#3
Report Thread starter 5 years ago
#3
(Original post by Stonebridge)
What is it you don't get?

How to calculate the acceleration from the data given using suvat, or how to use that acceleration in F=ma for force?

I understand both of those things fine - i'm just struggling with finding 'T' in the tow-bar! i'm literally stuck, i think i use suvat and f=ma for the last part (calculate the engine force)
0
reply
Stonebridge
Badges: 10
#4
Report 5 years ago
#4
(Original post by physicso)
I understand both of those things fine - i'm just struggling with finding 'T' in the tow-bar! i'm literally stuck, i think i use suvat and f=ma for the last part (calculate the engine force)
The tension in the towbar is the force, F, required to accelerate the trailer of given mass with the acceleration you found using suvat.
The tension in the towbar is the only (accelerating) force acting on the trailer.
0
reply
X

Quick Reply

Attached files
Write a reply...
Reply
new posts
Latest
My Feed

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.

Personalise

University open days

  • London Metropolitan University
    Postgraduate Mini Open Evening - Holloway Campus Undergraduate
    Tue, 21 May '19
  • Brunel University London
    Postgraduate Open Evening Postgraduate
    Wed, 22 May '19
  • University of Roehampton
    Postgraduate Open Evening Postgraduate
    Wed, 22 May '19

How did your AQA A-level Psychology Paper 1 go?

Loved the paper - Feeling positive (3)
42.86%
The paper was reasonable (0)
0%
Not feeling great about that exam... (1)
14.29%
It was TERRIBLE (3)
42.86%

Watched Threads

View All
Latest
My Feed

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.

Personalise