Direct and Inverse Proportion

The extension of a spring ( $s\,$ mm) is directly proportional to the weight ( $w\,$ kg) attached to it.

$s\,$ is given by the formula: $s = 4.5 w$

Find the weight attached when the spring has an extension of 36 mm.

[2]

The extension of a spring ( $s\,$ mm) is directly proportional to the weight ( $w\,$ kg) attached to it.

$s\,$ is given by the formula: $s = 4.5 w$

Find the weight attached when the spring has an extension of 36 mm.

[2]

Direct and Inverse Proportion Questions