Question Number 134769 by abdurehime last updated on 07/Mar/21 Commented by abdurehime last updated on 07/Mar/21 $$\mathrm{please}\:\mathrm{be}?\mathrm{fast} \\ $$ Commented by john_santu last updated on…
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Question Number 69183 by Tony Lin last updated on 21/Sep/19 Commented by Tony Lin last updated on 21/Sep/19 $$\mathrm{49}.\:{m}_{\mathrm{1}} {g}=\left({m}_{\mathrm{1}} +{m}_{\mathrm{2}} \right){a} \\ $$$$\Rightarrow{a}=\frac{{m}_{\mathrm{1}} {g}}{{m}_{\mathrm{1}}…
Question Number 134678 by mr W last updated on 07/Mar/21 Commented by mr W last updated on 06/Mar/21 $${attempt}\:{to}\:{solve}\:{Q}\mathrm{134376} \\ $$ Commented by mr W…
Question Number 69045 by jagannath19 last updated on 18/Sep/19 Answered by Rio Michael last updated on 18/Sep/19 $${F}_{{net}} =\:\mathrm{100}{cos}\mathrm{53}° \\ $$$${ma}\:\approx\:\mathrm{60} \\ $$$$\mathrm{2}\left({a}\right)\:=\:\mathrm{60} \\ $$$${a}\:=\:\mathrm{30}{m}/{s}^{\mathrm{2}}…
Question Number 134376 by mr W last updated on 02/Mar/21 Commented by mr W last updated on 06/Mar/21 $${a}\:{solid}\:{cone}\:{of}\:{mass}\:{m}\:{is}\:{released} \\ $$$${from}\:{rest}\:{at}\:{the}\:{horizontal}\:{position} \\ $$$${on}\:{a}\:{inclined}\:{plane}\:{as}\:{shown}.\:{the}\:{cone} \\ $$$${can}\:{only}\:{roll}\:{on}\:{the}\:{plane}.\:{find}\:{the}…
Question Number 68714 by Learner-123 last updated on 15/Sep/19 Answered by mr W last updated on 15/Sep/19 $${acceleration}\:{of}\:{object}\:{C}=\frac{\mathrm{1}.\mathrm{2}}{\mathrm{2}}=\mathrm{0}.\mathrm{6}{m}/{s}^{\mathrm{2}} \\ $$$${force}\:{in}\:{cable}=\frac{\mathrm{1}}{\mathrm{2}}×\mathrm{375}×\frac{\mathrm{10}+\mathrm{0}.\mathrm{6}}{\mathrm{10}}=\mathrm{198}.\mathrm{75}\:{N} \\ $$$${power}\:{input}=\frac{\mathrm{198}.\mathrm{75}×\mathrm{0}.\mathrm{6}}{\mathrm{0}.\mathrm{85}}=\mathrm{140}.\mathrm{3}\:{watt} \\ $$ Commented…
Question Number 134249 by abdurehime last updated on 01/Mar/21 Answered by mr W last updated on 01/Mar/21 Commented by mr W last updated on 01/Mar/21…
Question Number 68642 by Maclaurin Stickker last updated on 14/Sep/19 $$\mathrm{Young}'\mathrm{s}\:\mathrm{modulus}\:\mathrm{of}\:\mathrm{a}\:\mathrm{material}\:\mathrm{measures} \\ $$$$\mathrm{its}\:\mathrm{resistance}\:\mathrm{caused}\:\mathrm{by}\:\mathrm{external}\:\mathrm{stresses}. \\ $$$$\mathrm{On}\:\mathrm{a}\:\mathrm{vertical}\:\mathrm{wall}\:\mathrm{is}\:\mathrm{a}\:\mathrm{solid}\:\mathrm{mass}\:\mathrm{of}\:\mathrm{specific} \\ $$$$\mathrm{mass}\:\rho\:\mathrm{and}\:\mathrm{Young}\:\varepsilon\:\mathrm{modulus}\:\mathrm{in}\:\mathrm{a}\:\mathrm{straight} \\ $$$$\mathrm{parallelepiped}\:\mathrm{shape},\:\mathrm{the}\:\mathrm{dimensions} \\ $$$$\mathrm{of}\:\mathrm{a}\:\mathrm{which}\:\mathrm{are}\:\mathrm{shown}\:\mathrm{in}\:\mathrm{the}\:\mathrm{figure}.\: \\ $$$$\mathrm{Based}\:\mathrm{on}\:\mathrm{the}\:\mathrm{correlations}\:\mathrm{between}\:\mathrm{physical} \\ $$$$\mathrm{quantities},\:\mathrm{determine}\:\mathrm{the}\:\mathrm{the}\:\mathrm{expression}\:\mathrm{that}…
Question Number 134064 by mr W last updated on 27/Feb/21 Commented by mr W last updated on 27/Feb/21 $${find}\:{the}\:{angle}\:\theta\:{at}\:{which}\:{the}\:{falling} \\ $$$${rod}\:{begins}\:{to}\:{slip}\:{on}\:{the}\:{ground}\:{if} \\ $$$${the}\:{friction}\:{coefficient}\:{between}\:{rod} \\ $$$${and}\:{ground}\:{is}\:\mu.…