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Category: Mechanics

A-massless-spring-with-a-spring-constant-K-10Nm-1-is-suspended-from-rigid-support-carries-a-mass-m-100g-at-it-lower-end-the-system-is-subjected-to-resistive-force-pv-it-observed-that-the-system-o

Question Number 190962 by Spillover last updated on 15/Apr/23 $$\mathrm{A}\:\mathrm{massless}\:\mathrm{spring}\:\mathrm{with}\:\mathrm{a}\:\mathrm{spring}\:\mathrm{constant} \\ $$$$\mathrm{K}=\mathrm{10Nm}^{−\mathrm{1}} \:\mathrm{is}\:\mathrm{suspended}\:\mathrm{from}\:\mathrm{rigid}\:\mathrm{support} \\ $$$$\mathrm{carries}\:\mathrm{a}\:\mathrm{mass}\:\mathrm{m}=\mathrm{100g}\:\mathrm{at}\:\mathrm{it}\:\mathrm{lower}\:\mathrm{end} \\ $$$$\mathrm{the}\:\mathrm{system}\:\mathrm{is}\:\mathrm{subjected}\:\mathrm{to}\:\mathrm{resistive}\:\mathrm{force} \\ $$$$−\mathrm{pv}.\mathrm{it}\:\mathrm{observed}\:\mathrm{that}\:\mathrm{the}\:\mathrm{system}\:\mathrm{oscillates} \\ $$$$\mathrm{and}\:\mathrm{its}\:\mathrm{energy}\:\mathrm{to}\:\mathrm{one}\:\mathrm{third}\:\mathrm{of}\:\mathrm{it}\:\mathrm{initial}\:\mathrm{value} \\ $$$$\mathrm{in}\:\mathrm{one}\:\mathrm{and}\:\mathrm{half}\:\mathrm{minutes}\:\mathrm{calculates}\:\mathrm{the}\: \\ $$$$\mathrm{value}\:\mathrm{of}\:\:\mathrm{p}…

A-projectile-of-mass-M-explodes-at-thee-highst-point-of-its-trajectory-when-it-hase-vlocity-The-horizontal-distance-travelede-btween-launch-and-explosion-is-x-0-Two-fragments-are-produced-with-i

Question Number 190793 by 2kdw last updated on 11/Apr/23 $$ \\ $$$$\mathrm{A}\:\mathrm{projectile}\:\mathrm{of}\:\mathrm{mass}\:\boldsymbol{{M}}\:\mathrm{explodes}\:\mathrm{at}\:\mathrm{thee} \\ $$$$\mathrm{highst}\:\mathrm{point}\:\mathrm{of}\:\mathrm{its}\:\mathrm{trajectory}\:\mathrm{when}\:\mathrm{it}\:\mathrm{hase} \\ $$$$\mathrm{vlocity}\:.\:\mathrm{The}\:\mathrm{horizontal}\:\mathrm{distance}\:\mathrm{travelede} \\ $$$$\mathrm{btween}\:\mathrm{launch}\:\mathrm{and}\:\mathrm{explosion}\:\mathrm{is}\:\boldsymbol{{x}}_{\mathrm{0}} \:.\:\mathrm{Two} \\ $$$$\mathrm{fragments}\:\mathrm{are}\:\mathrm{produced}\:\mathrm{with}\:\mathrm{initiale} \\ $$$$\mathrm{velocitis}\:\mathrm{parallel}\:\mathrm{to}\:\mathrm{the}\:\mathrm{ground}.\:\mathrm{They}\: \\ $$$$\mathrm{thenfollow}\:\mathrm{their}\:\mathrm{trajectories}\:\mathrm{until}\:\mathrm{they}\:\mathrm{hitt}…

Question-59380

Question Number 59380 by rahul 19 last updated on 09/May/19 Answered by tanmay last updated on 09/May/19 $${N}_{\left({cup}\:{andball}\right)} {cos}\theta=\left({mg}\right)_{{ball}} \\ $$$${N}_{\left({cup}\:{and}\:{ball}\right)} {sin}\theta={N}_{{ball}\:{and}\:{ball}} \\ $$$$\frac{{N}_{{cup}\:{and}\:{ball}} }{{N}_{{ball}\:{and}\:{ball}}…

Question-59378

Question Number 59378 by tanmay last updated on 09/May/19 Answered by tanmay last updated on 09/May/19 $${Total}\:{force}=\mathrm{2}{T} \\ $$$${common}\:{accelaration}\:{a}_{{c}} =\frac{\mathrm{2}{T}}{{m}_{{man}} +{m}_{{plank}} }=\frac{\mathrm{200}}{\mathrm{150}} \\ $$$${a}_{{c}} =\frac{\mathrm{4}}{\mathrm{3}}…