Question Number 31318 by ajfour last updated on 06/Mar/18 Commented by ajfour last updated on 06/Mar/18 $${If}\:{each}\:{spring}\:{has}\:{a}\:{natural} \\ $$$${lengh}\:\boldsymbol{{l}}\:{then}\:{find}\:{comression}\:\boldsymbol{{x}} \\ $$$${in}\:{the}\:{springs}\:{in}\:{the}\:{situation} \\ $$$${depicted}\:{in}\:{figure}\:{above}. \\ $$…
Question Number 31292 by ajfour last updated on 05/Mar/18 Commented by ajfour last updated on 05/Mar/18 $${Length}\:{of}\:{tape}\:{is}\:{L}. \\ $$ Commented by mrW2 last updated on…
Question Number 96817 by peter frank last updated on 05/Jun/20 Commented by mr W last updated on 06/Jun/20 $${both}\:{results}\:{in}\:{question}\:{are}\:{wrong}! \\ $$$${please}\:{check}\:{if}\:{they}\:{are}\:{your}\:{typos}\:{or} \\ $$$${question}\:{in}\:{book}\:{is}\:{really}\:{wrong}. \\ $$…
Question Number 31187 by rahul 19 last updated on 03/Mar/18 Commented by ajfour last updated on 03/Mar/18 Commented by ajfour last updated on 03/Mar/18 $${v}=\omega\left({R}+{r}\right)…
Question Number 31148 by NECx last updated on 03/Mar/18 $${A}\:{body}\:{is}\:{projected}\:{at}\:{an}\:{angle} \\ $$$$\mathrm{35}°\:{with}\:{an}\:{initial}\:{speed}\:{of}\:\mathrm{45}{m}/{s}. \\ $$$${What}\:{is}\:{the}\:{velocity}\:{of}\:{the}\:{body} \\ $$$${after}\:\mathrm{2}{s}\:{and}\:{the}\:{angle}\:{made}\:{with} \\ $$$${the}\:{horizontal}\:{axis}?\:\left[{g}=\mathrm{9}.\mathrm{81}{ms}^{−\mathrm{2}} \right] \\ $$ Commented by NECx last…
Question Number 31149 by NECx last updated on 03/Mar/18 $${here}\:{is}\:{a}\:{question}\:{really}\:{troubling} \\ $$$${me}. \\ $$$$ \\ $$$${A}\:{cylindrical}\:{tube}\:{rolling}\:{down}\:{a} \\ $$$${slope}\:{of}\:{inclination}\:\theta\:{moves}\:{a} \\ $$$${distance}\:{L}\:{in}\:{the}\:{time}\:{T}.\:{The} \\ $$$${equation}\:{relating}\:{these}\:{quantities}\:{is} \\ $$$$ \\…
Question Number 31143 by NECx last updated on 03/Mar/18 $${A}\:{cyclist}\:{is}\:{travelling}\:{down}\:{a} \\ $$$${hill}\:{at}\:{a}\:{speed}\:{of}\:\mathrm{9}.\mathrm{2}{m}/{s}\:.\:{The} \\ $$$${hillside}\:{makes}\:{an}\:{angle}\:{of}\:\mathrm{6}.\mathrm{3}° \\ $$$${with}\:{the}\:{horizontal}\:.{Calculate}, \\ $$$${for}\:{the}\:{cyclist}: \\ $$$$\left({i}\right){the}\:{vertical}\:{speed} \\ $$$$\left({ii}\right){horizontal}\:{speed} \\ $$ Answered…
Question Number 31144 by NECx last updated on 03/Mar/18 $${A}\:{mass}\:{oscillating}\:{on}\:{a}\:{spring} \\ $$$${has}\:{amplitude}\:{of}\:\mathrm{1}.\mathrm{2}{m}\:{and}\:{a} \\ $$$${period}\:{of}\:\mathrm{2}.\mathrm{0}{s}. \\ $$$$\left({a}\right){Deduce}\:{the}\:{equation}\:{for}\:{the} \\ $$$${displacement}\:{x}\:{if}\:{the}\:{timing}\:{starts} \\ $$$${at}\:{the}\:{instant}\:{where}\:{the}\:{mass} \\ $$$${has}\:{its}\:{maximum}\:{displacement}. \\ $$$$\left.{b}\right){calculate}\:{the}\:{time}\:{interval} \\…
Question Number 31133 by Tinkutara last updated on 02/Mar/18 Commented by ajfour last updated on 03/Mar/18 Commented by ajfour last updated on 03/Mar/18 $$\omega_{{max}} =\frac{\sqrt{{u}^{\mathrm{2}}…
Question Number 31026 by Tinkutara last updated on 02/Mar/18 Commented by Tinkutara last updated on 02/Mar/18 Commented by Tinkutara last updated on 02/Mar/18 39 question Terms…