Question Number 83861 by Umar last updated on 07/Mar/20
$$\mathrm{An}\:\mathrm{object}\:\mathrm{of}\:\mathrm{mass}\:\mathrm{7kg}\:\mathrm{is}\:\mathrm{sliding}\:\mathrm{down} \\ $$$$\mathrm{a}\:\mathrm{frictionless}\:\mathrm{20m}\:\mathrm{inclined}\:\mathrm{plane}. \\ $$$$\mathrm{Calculate}\:\mathrm{the}\:\mathrm{speed}\:\mathrm{of}\:\mathrm{the}\:\mathrm{object}\:\mathrm{when}\: \\ $$$$\mathrm{it}\:\mathrm{reaches}\:\mathrm{the}\:\mathrm{ground}. \\ $$
Commented by mr W last updated on 07/Mar/20
$${it}\:{depents}\:{on}\:{the}\:{height}\:{of}\:{the}\:{plane}. \\ $$$${here}\:{is}\:{only}\:{the}\:{length}\:{of}\:{the}\:{plane} \\ $$$${given}.\:{you}\:{should}\:{also}\:{know}\:{the} \\ $$$${inclination}\:{of}\:{the}\:{plane}. \\ $$
Commented by Rio Michael last updated on 07/Mar/20
$$\mathrm{please}\:\mathrm{state}\:\mathrm{the}\:\mathrm{value}\:\mathrm{of}\:\theta\:\mathrm{the}\:\mathrm{inclination} \\ $$$$\mathrm{of}\:\mathrm{the}\:\mathrm{plane}\:\mathrm{then}\:\mathrm{it}\:\mathrm{will}\:\mathrm{workout}\:\mathrm{well} \\ $$
Commented by Umar last updated on 19/Mar/20
$$\mathrm{that}'\mathrm{s}\:\mathrm{what}\:\mathrm{i}\:\mathrm{asked}\:\mathrm{my}\:\mathrm{lecturer}\:\mathrm{and}\:\mathrm{he}\: \\ $$$$\mathrm{didn}'\mathrm{t}\:\mathrm{mind}\:\mathrm{me}.\:\mathrm{He}\:\mathrm{said}\:“\mathrm{it}'\mathrm{s}\:\mathrm{an}\:\mathrm{assignment} \\ $$$$\mathrm{please}\:\mathrm{allow}\:\mathrm{me}''. \\ $$