Question Number 47848 by Necxx last updated on 15/Nov/18
$${A}\:{body}\:{ascends}\:{a}\:{slope}\:{with}\:{a} \\ $$$${speed}\:{of}\:\mathrm{10}{m}/{s}.{If}\:\mathrm{105}{J}\:{of}\:{energy} \\ $$$${of}\:{the}\:{body}\:{is}\:{lost}\:{due}\:{to}\:{friction}\: \\ $$$${then}\:{the}\:{height}\:{to}\:{which}\:{the}\:{body} \\ $$$${will}\:{rise}\:{is} \\ $$$$\left.{a}\left.\right)\left.\mathrm{0}\left..\mathrm{5}{m}\:\:\:{b}\right)\mathrm{4}.\mathrm{5}{m}\:\:\:{c}\right)\mathrm{3}.\mathrm{5}{m}\:\:\:{d}\right)\mathrm{2}.\mathrm{0}{m} \\ $$
Commented by Necxx last updated on 16/Nov/18
$${please}\:{help} \\ $$
Commented by mr W last updated on 16/Nov/18
$${what}\:{is}\:{the}\:{mass}\:{of}\:{the}\:{body}? \\ $$