Menu Close

Category: Mechanics

Question-69045

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-134376

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-68714

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…