Questions and answers by

Henriette Fleming

Answers (7)

A wire is gradually stretched unit it's shape sketch a load of extension graph for the wire and the on the graph indicates elastic limit, the yield point the maximum load and the breaking point.
A spiral loaded with a price of metal extended by10.5cm in air when the metal is fully submerged in water the spring extends by 6.8cm.Calculate the relative density of the metal assuming Hoke's law is obeyed.
A load of 15N is placed on a scale attached spring balance.this load causes an extension of 5cm in the spring. What load must be placed on the spring balance to cause an extension of 8cm.is the spring constant of spring?
A body of Mass 2kg is attached to the end of a vertical wire of length 2m diameter 0.64mm and the extension of 0.6 calculate the tensile stress and tensile strain.
A uniform steel wire has crossed sectional area of 10×10^-6m and length of 10m.A Mass of 10kg is attached at one end. If the young modulus of steel is 10^-2nm^-2 Calculate the extension produced takes gravity at 9.8m/s^-2
A spring of national length 3m is extended by 0.01m by a force of 4N what will be the length when the applied force is2N
If a load of 1000N is applied to a wire the extension is 0.01m calculate the energy stored in the wire.

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