• We need your support!

    We are currently struggling to cover the operational costs of Xtremepapers, as a result we might have to shut this website down. Please donate if we have helped you and help make a difference in other students' lives!
    Click here to Donate Now (View Announcement)

MECHANICS-2 LIGHT BULB

Messages
887
Reaction score
466
Points
73
A new bulb with a bayonet fitting is to be inserted into a vertical lamp holder the mass of the bulb is 40gram. To insert the bulb it is first placed in the holder so that it rests on the two vertical springs it then has to be pushed down 6mm against the springs and twisted then when it is released it rises 2mm and is held firm by the pins which fit into the slots in the holder the maximum force you need to exert during the process is 2 newtons Find the force holding the bulb in position.

what i have done so far
since there are two springs the force acting on it will be divided by 2

formula that is to be used T=(lambda*x)/l where T is tension. lambda is the modulus of elasticity
x is extension l is the original length

why is answer 4/3 N help light bulb.JPG
 
Top