Isaac Physics Watch

Kimberley_P
Badges: 8
Rep:
?
#1
Report Thread starter 1 month ago
#1
A spring with natural length 0.70m requires 3.2N to stretch it by 17.5cm. Work out the force required to stretch the spring to a length of 83cm.

How do i do this question

i got like 5.1 N but its wrong
0
reply
josejobs
Badges: 6
Rep:
?
#2
Report 1 month ago
#2
(Original post by Kimberley_P)
A spring with natural length 0.70m requires 3.2N to stretch it by 17.5cm. Work out the force required to stretch the spring to a length of 83cm.

How do i do this question

i got like 5.1 N but its wrong
f=kx

thats it.
Posted on the TSR App. Download from Apple or Google Play
0
reply
amal29
Badges: 10
Rep:
?
#3
Report 1 month ago
#3
Is the answer 0.48N?
0
reply
Kimberley_P
Badges: 8
Rep:
?
#4
Report Thread starter 1 month ago
#4
(Original post by amal29)
Is the answer 0.48N?
it says its wrong
0
reply
Kimberley_P
Badges: 8
Rep:
?
#5
Report Thread starter 1 month ago
#5
(Original post by josejobs)
f=kx

thats it.
Thank you
0
reply
Justvisited
Badges: 13
Rep:
?
#6
Report 1 month ago
#6
(Original post by Kimberley_P)
A spring with natural length 0.70m requires 3.2N to stretch it by 17.5cm. Work out the force required to stretch the spring to a length of 83cm.

How do i do this question

i got like 5.1 N but its wrong
Quick common sense check: how can it require a greater force to stretch it by a lesser distance? (13 cm < 17.5 cm) You should see at once that the answer has to be less than 3.2 N.
0
reply
Eimmanuel
  • Community Assistant
Badges: 13
Rep:
?
#7
Report 4 weeks ago
#7
(Original post by Kimberley_P)
A spring with natural length 0.70m requires 3.2N to stretch it by 17.5cm. Work out the force required to stretch the spring to a length of 83cm.

How do i do this question

i got like 5.1 N but its wrong
It would be better that you write your working than just the answer to demonstrate what you know.

What is the spring constant?

What is the extension of the spring when the length is 83 cm?

Apply F = kx, where x is the extension.
0
reply
moonlight98
Badges: 14
Rep:
?
#8
Report 4 weeks ago
#8
I got 2.4N
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

  • Solent University
    Postgraduate and Professional Open Evenings Postgraduate
    Mon, 25 Mar '19
  • Cardiff University
    Undergraduate Open Day Undergraduate
    Wed, 27 Mar '19
  • University of Portsmouth
    Postgraduate and Part-Time Open Evenings Postgraduate
    Wed, 27 Mar '19

Where do you need more help?

Which Uni should I go to? (149)
18.51%
How successful will I become if I take my planned subjects? (79)
9.81%
How happy will I be if I take this career? (137)
17.02%
How do I achieve my dream Uni placement? (114)
14.16%
What should I study to achieve my dream career? (79)
9.81%
How can I be the best version of myself? (247)
30.68%

Watched Threads

View All