Question

Solve.

The distance D that a spring is stretched by a hanging object varies directly as the weight W of the object. If a 25-kg object stretches
a spring 65 cm, how far will a 14-kg weight stretch the spring?

Answer 1

The distance d when a spring is stretched by a hanging object varies directly as the weight w of the object.

If the distance is 27cm when the weight is 4kg, what is the distance when the weight is 5kg? The distance is cm.

Explanation:

let d = dist when 5 kg is hung on the spring

Varies directly therefore:

cross multiply

4d = 27 * 5

4d = 135

d = 135/4

d = 33.75 cm