What is the value of Young's modulus for a perfectly rigid body?

What is bulk modulus for a perfect rigid body?

Define a rigid body.

What is the expression for Young's modulus of elasticity?

What is a rigid body?

With the rise of temperature the Young's modulus of elasticity:

A truck is pulling a car out of a ditch by means of a steel cable that is 9.1 m long and has a radius of 5 mm. When the car just begins to move, the tension in the cable is 800 N. How much has the cble streched ? (Young's modulus for steel is 2xx 10^11 N m^-2) .