Question

the distance a spring will stretch varies directly with how much weight is attached to the spring. If a spring stretches 11 inches with 75 pounds attached, how far will it stretch with 65 attached? Round to the nearest tenth of an inch.

Answer 1

if 11inches=75lbs
then x=65lbs, solve the system of equations

Answer 2

SO the answer is 10.9

Answer 3

i guess, let me ask what the others think?

Answer 4

Hooks Law: \(F(x)=-kx\)

Answer 5

find k

Answer 6

but we dont have k

Answer 7

it should be given

Answer 8

9.53inches

Answer 9

\[F(x)=ma[\text{kg}\cdot \text{m}\cdot \text s^{-2}]\]

Answer 10

@UnkleRhaukus I highly doubt that this needs physics laws to be solved...

Answer 11

well it does .

Answer 12

okay, so would you mind giving @Crazyrayback a step by step explanation of how to get the answer?

Answer 13

\[ma=-kx\]
\[m_1=75[\text{Oz}]=34.0[\text{kg}];\qquad x_1=11[\text{in}]=0.280[\text m]\]\[m_2=65[\text{Oz}]=29.5[\text{kg}];\qquad x_2=?\]