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Hooke's Law...

Hooke's Law

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A mass (M) attached to a spring, oscillates with a period of (2 sec). If the mass in increased by (2 kg) the period increases by one sec. Find the initial mass (M) assuming that Hook's Law is obeyed.

When a person stands on a weighing balance, working on the principle of Hooke's law, it shows a reading of 60kg after a long time and the spring gets compressed by 2.5cm . If the person jumps on the balance from a height of 10cm , the maximum reading of the balance will be

When a 4 kg mass is hung vertically on a light string that obeys Hooke's law, the spring stretches by 2 cm. The work required to be done by an external agent in stretching this spring by 5 cm will be ( g=9.8(metrs)/(sec^2) )

Assume that the least load which would break a thread when simply suspended from it is M and that this load produces a strain of 1 percent at the moment of breaking. Also assume that Hooke's law applies to the thread right up to breakingpoint. A load of mass m is suspended from a thread of length lambda . It is raised to a height and released. Find the least height to which the load must be raised so that it will will break the thread when allowed to fall.

A copper wire is stretched at a temperature of 150^(@)C between two strong fixed walls. At what temperature, will the wire break when it cools ? Assume Hooke's law is applicable till the wire breaks. alpha_(Cu) = 1.6 xx 10^(-5) /degree Y_("copper") = 11.8 xx 10^(10) N//m^(2) Ultimate strength of copper = 2.45 xx 10^(8) N//m^(2)

If a spring is extended to length l , the according to Hook's law

Hook's law defines