# A-wave-has-an-amplitude-of-20cm-from-rest-If-the-angle-of-oscillation-is-30-Find-the-displacement-of-the-wave-

Question Number 204753 by Tawa11 last updated on 26/Feb/24
A wave has an amplitude of 20cm from rest.
If the angle of oscillation is 30⁰. Find the
displacement of the wave.
Commented by mr W last updated on 28/Feb/24
$${is}\:{this}\:{the}\:{right}\:{answer}\:{you}\:{have} \\$$$${expected}? \\$$
Commented by Tawa11 last updated on 28/Feb/24
$$\mathrm{I}\:\mathrm{appreciate}\:\mathrm{sir} \\$$
Commented by TonyCWX08 last updated on 27/Feb/24
$$\\$$$${Displacement} \\$$$$=\mathrm{20}×{cos}\left(\mathrm{30}°\right) \\$$$$=\mathrm{17}.\mathrm{32}\:{cm} \\$$
Commented by Tawa11 last updated on 28/Feb/24
$$\mathrm{No}\:\mathrm{sir}. \\$$$$\mathrm{I}\:\mathrm{don}'\mathrm{t}\:\mathrm{know}\:\mathrm{the}\:\mathrm{answer}. \\$$$$\mathrm{But}\:\mathrm{am}\:\mathrm{not}\:\mathrm{cleared}\:\mathrm{with}\:\mathrm{the}\:\mathrm{working}. \\$$
Commented by mr W last updated on 28/Feb/24
$${but}\:{your}\:{reply}\:{suggested}\:{that}\:{his} \\$$$${answer}\:{was}\:{right}\:{and}\:{you}\:{are}\:{satisfied} \\$$$${with}\:{this}\:{result}. \\$$
Commented by mr W last updated on 28/Feb/24
$${i}\:{don}'{t}\:{think}\:{that}\:{the}\:{question}\:{is} \\$$$${clear}\:{enough}\:{such}\:{that}\:{a}\:{clear}\: \\$$$${answer}\:{can}\:{be}\:{given}. \\$$
Commented by Tawa11 last updated on 28/Feb/24
$$\mathrm{Sir},\:\mathrm{I}\:\mathrm{only}\:\mathrm{complement}\:\mathrm{his}\:\mathrm{reply}. \\$$
Commented by mr W last updated on 28/Feb/24
$${ok}.\:{i}\:{mistook}. \\$$