Question 1:The base of a solid is a circular disk of radius 2, and the cross sec

Question

Question 1:The base of a solid is a circular disk of radius 2, and the cross sections perpendicular to the base are isosceles right triangles with the hypotenuse lying on the base. Find the volume of the solid.
Question2: A force of 8 Ib is required to stretch a spring 2 in. Beyond its natural length. Find the work required to stretch the spring 3 in. Beyond its natural length Question 1:The base of a solid is a circular disk of radius 2, and the cross sections perpendicular to the base are isosceles right triangles with the hypotenuse lying on the base. Find the volume of the solid.
Question2: A force of 8 Ib is required to stretch a spring 2 in. Beyond its natural length. Find the work required to stretch the spring 3 in. Beyond its natural length
Question2: A force of 8 Ib is required to stretch a spring 2 in. Beyond its natural length. Find the work required to stretch the spring 3 in. Beyond its natural length

Explanation / Answer

given F=8lb to stretch x=2inch

we know that F = kx

8 lbs = k(2 in)
(8/2) lbs/in = k
k=4lbs/in

now work done W = (1/2)k*x^2
W = (1/2)(4 lbs/in)3 in)^2
W = 6 in-lbs

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