Question Number 154854 by peter frank last updated on 22/Sep/21 Commented by Tawa11 last updated on 22/Sep/21 $$\mathrm{nice} \\ $$ Answered by mr W last…
Question Number 154851 by peter frank last updated on 22/Sep/21 Commented by peter frank last updated on 22/Sep/21 $$\mathrm{at}\:\mathrm{U}_{\mathrm{o}} ^{\mathrm{2}} \:\mathrm{m}/\mathrm{s}\:. \\ $$ Commented by…
Question Number 154549 by peter frank last updated on 19/Sep/21 $$\mathrm{A}\:\mathrm{particle}\:\mathrm{is}\:\mathrm{projected}\:\:\mathrm{with}\:\mathrm{velocity} \\ $$$$\mathrm{2}\sqrt{\mathrm{gh}}\:\:\:\mathrm{so}\:\mathrm{that}\:\:\mathrm{it}\:\mathrm{just}\:\mathrm{clears}\:\mathrm{two} \\ $$$$\mathrm{walls}\:\mathrm{of}\:\mathrm{equal}\:\mathrm{heigh}\left(\mathrm{h}\right)\:\:\mathrm{in}\:\mathrm{the} \\ $$$$\mathrm{t}_{\mathrm{1}} \:\mathrm{and}\:\mathrm{t}_{\mathrm{2}\:} \:\mathrm{respectively}.\mathrm{The}\:\mathrm{two} \\ $$$$\mathrm{walls}\:\mathrm{are}\:\mathrm{at}\:\mathrm{a}\:\mathrm{distance}\:\mathrm{of}\:\:\mathrm{2h}\:\:\mathrm{from} \\ $$$$\mathrm{each}\:\mathrm{other}.\mathrm{If}\:\mathrm{time}\:\mathrm{passing}\: \\ $$$$\mathrm{between}\:\mathrm{the}\:\mathrm{two}\:\mathrm{walls}\:\mathrm{is}\:\mathrm{2}\sqrt{\frac{\mathrm{h}}{\mathrm{g}}}…
Question Number 154547 by peter frank last updated on 19/Sep/21 $$\mathrm{A}\:\mathrm{particle}\:\mathrm{is}\:\mathrm{projected}\:\mathrm{inside}\:\mathrm{the}\:\mathrm{tunnel} \\ $$$$\mathrm{which}\:\mathrm{is}\:\mathrm{4m}\:\mathrm{high}.\mathrm{if}\:\:\mathrm{the}\:\mathrm{initial}\:\mathrm{speed} \\ $$$$\mathrm{is}\:\mathrm{V}_{\mathrm{o}} .\mathrm{show}\:\mathrm{that}\:\mathrm{the}\:\mathrm{maximum} \\ $$$$\mathrm{range}\:\mathrm{inside}\:\mathrm{the}\:\mathrm{tunnel}\:\mathrm{is}\:\mathrm{given} \\ $$$$\mathrm{by}\:\:\:\:\:\:\mathrm{R}=\mathrm{4}\sqrt{\mathrm{2}}\:\sqrt{\frac{\mathrm{V}_{\mathrm{o}} ^{\mathrm{2}} }{\mathrm{g}}−\mathrm{8}} \\ $$ Answered…
Question Number 88967 by ajfour last updated on 14/Apr/20 Commented by ajfour last updated on 14/Apr/20 $${A}\:{stick}\:{of}\:{length}\:\mathrm{2}{r}\:{slides}\: \\ $$$${against}\:{a}\:{fixed}\:{smooth}\:{cylindrical} \\ $$$${surface}.\:{It}\:{is}\:{released}\:{with}\:{one} \\ $$$${at}\:{A}\:\left({in}\:{tangential}\:{manner}\right), \\ $$$${and}\:{loses}\:{contact}\:{thereafter}\:{at}…
Question Number 88963 by Zainal Arifin last updated on 14/Apr/20 $$\mathrm{How}\:\mathrm{far}\:\mathrm{can}\:\mathrm{a}\:\mathrm{cyclist}\:\mathrm{travel}\:\mathrm{in}\:\mathrm{4}\:\mathrm{h} \\ $$$$\mathrm{if}\:\mathrm{his}\:\mathrm{average}\:\mathrm{speed}\:\mathrm{is}\:\mathrm{11}.\mathrm{5}\:\mathrm{km}/\mathrm{h}\:? \\ $$ Commented by MJS last updated on 14/Apr/20 $$\mathrm{seriously}? \\ $$$$…\mathrm{ok}:…
Question Number 88961 by Zainal Arifin last updated on 14/Apr/20 $$\mathrm{One}\:\mathrm{care}\:\mathrm{travels}\:\mathrm{due}\:\mathrm{east}\:\mathrm{at}\:\mathrm{40}\:\mathrm{km}/\mathrm{h}. \\ $$$$\mathrm{and}\:\mathrm{second}\:\mathrm{car}\:\mathrm{travels}\:\mathrm{north}\:\mathrm{at}\: \\ $$$$\mathrm{40}\:\mathrm{km}/\mathrm{h}.\:\mathrm{are}\:\mathrm{their}\:\mathrm{velocities}\:\mathrm{equal}? \\ $$ Commented by ajfour last updated on 14/Apr/20 $${No},\:{since}\:{directions}\:{are}\:{not}\:{same}.…
Question Number 154465 by Eric002 last updated on 18/Sep/21 Commented by Eric002 last updated on 18/Sep/21 $${a}\:{circle}\:{rolls}\:{inside}\:{a}\:{prabola}.{does}\:{the} \\ $$$${center}\:{of}\:{that}\:{circle}\:{also}\:{trace}\:{a}\:{prabola}? \\ $$$${fond}\:{its}\:{equation} \\ $$$$ \\ $$…
Question Number 88623 by ajfour last updated on 11/Apr/20 Commented by ajfour last updated on 11/Apr/20 $${If}\:{the}\:{solid}\:{cylinder}\:{has}\:{to}\:{roll} \\ $$$${on}\:{to}\:{the}\:{inclined}\:{plane}\:{without} \\ $$$${a}\:{jump},\:{find}\:{u}_{{max}} . \\ $$ Commented…
Question Number 88027 by ajfour last updated on 07/Apr/20 Commented by ajfour last updated on 07/Apr/20 $${If}\:{released}\:{as}\:{shown},\:{end}\:{A} \\ $$$${of}\:{rod}\:{shall}\:{hit}\:{the}\:{smooth} \\ $$$${horizontal}\:{at}\:{what}\:{distance} \\ $$$${from}\:{corner}\:{C}.\:{Assume}\:{M}\:{is} \\ $$$${sufficiently}\:{greater}\:{than}\:{m}.…