Turn on thread page Beta
    • Thread Starter
    Offline

    0
    ReputationRep:
    sry, new problemo

    "two identical springs 250mm of length are suspended vertically side-by-side from a fixed point. a 40n weight is attached to the ends of the two springs. the length of each spring is then 350mm. calculate the tension in each spring."

    i put 40 newtons but apparently that's wrong--instead it's 20n? since the spring isn't accelerating doesn't that mean it has 0 net force on it??:
    Offline

    10
    ReputationRep:
    (Original post by TRIFLUORIDES)
    sry, new problemo

    "two identical springs 250mm of length are suspended vertically side-by-side from a fixed point. a 40n weight is attached to the ends of the two springs. the length of each spring is then 350mm. calculate the tension in each spring."

    i put 40 newtons but apparently that's wrong--instead it's 20n? since the spring isn't accelerating doesn't that mean it has 0 net force on it??:
    It's because there are two spings. Both the springs together are supplying a tension of 40n vertically upwards to remain in equilibrium. So each spring has a tension 20n. Because two springs on tension 20n will hold a weight of 40n
 
 
 
Poll
Do you think parents should charge rent?

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.