The elongation E of a spring balance varies directly with the applied weight W (see the...

Question

Question

The elongation E of a spring balance varies directly with the applied weight W (see the figure). If E= 3 when W = 19, find E

math algebra

Answer 1

Answer #1

According to the given data, we have,

E = kW

where 'k' is a variational constant.

.

Now when W = 19 then E = 3. So we have,

3 = k*19

i.e. k = 3/19

.

Now when W = 14 then we have,

E = (3/19)*(14)

i.e. E = 42/19

Answer 2

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