Hooke's Law. The distance d when a spring is stretched by a hanging object varies directly as the weight w of the object. If the

Question

2 years ago

5

distance is 15 cm when the weight is 2 kg, what is the distance when the weight is 7 kg?

1 answer:

algol [13] · Answer 1 · 2021-12-27T18:35:39+03:00

The distance is 52.5 cm when weight is 7kg

Step-by-step explanation:

Distance is 15 cm when weight is 2 kg

We need to find the distance d when weight is 7 kg

Since distance and weight varies directly so,

$\frac{15}{2}=\frac{d}{7}$

Solving the above expression:

$\frac{15}{2}=\frac{d}{7}\\Cross\,\,multiply\\15*7=d*2\\105=d*2\\d=\frac{105}{2}\\d=52.5$

So, The distance is 52.5 cm when weight is 7kg

Keywords: Direct relation between two quantities

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