F = 4 Newtons – the force under the action of which the dynamometer spring was stretched;
dx = 10 centimeters = 0.1 meters – the amount of tension of the dynamometer spring.
It is required to determine k (Newton / meter) – the coefficient of stiffness of the dynamometer spring.
To find the coefficient of spring stiffness, you need to use the following formula:
F = k * dx, hence:
k = F / dx = 4 / 0.1 = 40 Newton / meter.
Answer: the coefficient of stiffness of the dynamometer spring is 40 N / m.
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