Five different experiments are carried out. In each experiment, a block is attac
ID: 1456516 • Letter: F
Question
Five different experiments are carried out. In each experiment, a block is attached to a horizontal spring. The block is pulled back a certain distance and released. The block oscillates back and forth on a frictionless surface. Rank the maximum force on the block for each of the following situations. (Rank the smallest force as 1).
A block of mass M is attached to a spring with a spring constant (1/2)k, pulled back a distance 2d, and released.
A block of mass M is attached to a spring with a spring constant k, pulled back a distance 2d, and released.
A block of mass M is attached to a spring with a spring constant k, pulled back a distance d, and released.
A block of mass (1/2)M is attached to a spring with a spring constant k, pulled back a distance d, and released.
A block of mass M is attached to a spring with a spring constant 2k, pulled back a distance d, and released.
Explanation / Answer
Apply Hook's law
A) F = k*x = (k/2)*2*d = k*d
B) F = k*x = k*2*d = 2*k*d
C) F = k*x = k*d
D) F = k*x = k*d
E) F = k*x = 2*k*d
so,
A = C = D > B = E
1 2 3 4 5
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