Question Number 136156 by BHOOPENDRA last updated on 19/Mar/21
Answered by mr W last updated on 19/Mar/21
$${a}=\frac{\mathrm{1000}−\mathrm{15}×\mathrm{10}−\mathrm{25}×\mathrm{10}}{\mathrm{15}+\mathrm{25}}=\mathrm{15}\:{m}/{s}^{\mathrm{2}} \\ $$$${N}=\mathrm{15}×\mathrm{15}+\mathrm{15}×\mathrm{10}=\mathrm{375}\:{N} \\ $$