Category: Mechanics

Question Number 63588 by ajfour last updated on 05/Jul/19 Commented by ajfour last updated on 05/Jul/19 $${If}\:{released}\:{as}\:{shown},\:{find}\:{time} \\ $$$${taken}\:{by}\:{the}\:{small}\:{block}\:{to}\:{slide} \\ $$$${down}\:{the}\:{frictionless}\:{track}\:{till}\:{O}. \\ $$ Answered by…

Question Number 63073 by ajfour last updated on 28/Jun/19 Commented by ajfour last updated on 28/Jun/19 $${Find}\:{x}_{{min}} \:. \\ $$ Answered by mr W last…

Question Number 62800 by ajfour last updated on 25/Jun/19 Commented by ajfour last updated on 25/Jun/19 $${If}\:{smaller}\:{ball}\:\left({solid}\right)\:{dropped} \\ $$$${over}\:{the}\:{bigger}\:{as}\:{shown},\:{find} \\ $$$$\boldsymbol{{u}}\:{immediately}\:{after}\:{collision}. \\ $$$$\left({assume}\:{frictionless}\:{surface},\right. \\ $$$${but}\:{with}\:{coefficient}\:{of}\:{restitu}-…

Question Number 127811 by mr W last updated on 02/Jan/21 Commented by mr W last updated on 02/Jan/21 $${a}\:{paraboloid}\:{bowl}\:{has}\:{a}\:{depth}\:{of}\:{H} \\ $$$${and}\:{an}\:{opening}\:{with}\:{diameter}\:{L}. \\ $$$${a}\:{small}\:{ball}\:{of}\:{mass}\:{m}\:{is}\:{released} \\ $$$${from}\:{rest}\:{at}\:{the}\:{rim}\:{of}\:{the}\:{bowl}.…

Question Number 61867 by readone97 last updated on 10/Jun/19 $$\:{a}\:{player}\:{kicked}\:{a}\:{football}\:{at}\:{angel}\:\mathrm{30}\:{with}\:{the}\:{ground}\:{towards}\:{an}\:{empty}\:{goal}\:{post}\:{of}\:{hegith}\:\mathrm{3}.\mathrm{4}{m}\:{the}\:{ball}\:{hits}\:{the}\:{crossbar}\:{of}\:{the}\:{goal}\:{post}\:\mathrm{30}{m}\:{away}\:{from}\:{where}\:{the}\:{ball}\:{was}\:{kicked}.\:{Take}\:{g}=\mathrm{9}.\mathrm{8}{m}/{s}.\:{Find}\:{the}\:{intial}\:{velocity}\:{u}\:{of}\:{the}\:{ball}?.{What}\:{is}\:{time}\:{taken}\:{for}\:{the}\:{ball}\:{to}\:{hit}\:{the}\:{crossbar}? \\ $$ Terms of Service Privacy Policy Contact: info@tinkutara.com