Does a spring scale measure weight or mass? Why?

1 answer:

5 0

A spring scale measures weight because It works by Hooke's Law, which states that the force needed to extend a spring is proportional to the distance that spring is extended from its rest position. Therefore, the scale markings on the spring balance are equally spaced. A spring scale cannot measure mass, only weight. hope that helped

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If you double d, what happens to your force

Tanzania [10]

Answer:

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3 0

3 years ago

Suppose you increase your walking speed from 4m/s to 12m/s in a period of 1 s. What is your acceleration?

den301095 [7]

We use the following formula to determine our acceleration:
$acceleration = \frac{(final velocity) - (initial velocity)}{time} = \frac{change of velocity}{time}$
We normally use letters in this formula, which gives us:
$a = \frac{v}{t}$

Filling in this formula gives us:
Δv (change of velocity) = 12 - 4 = 8 m/s
t = 1s
$a = \frac{8}{1} = 8 m/s^2$
So our answer: the acceleration is $8m/ s^{2}$