139017 Tyre of a bicycle has volume $2 \times 10^{-3} \mathrm{~m}^{3}$. Initially, the tube is filled $75 \%$ of its volume by air at atmospheric pressure $10^{5} \mathrm{Nm}^{-2}$. When a rider is on the bicycle, the area of contact of tyre with road is $24 \times 10^{-4} \mathrm{~m}^{2}$. The mass of rider with bicycle is $120 \mathrm{~kg}$. If a pump delivers a volume $500 \mathrm{~cm}^{3}$ of air in each stroke, then the number of strokes required to inflate the tyre is $\left(\mathrm{g}=10 \mathrm{~ms}^{-2}\right)$
139017 Tyre of a bicycle has volume $2 \times 10^{-3} \mathrm{~m}^{3}$. Initially, the tube is filled $75 \%$ of its volume by air at atmospheric pressure $10^{5} \mathrm{Nm}^{-2}$. When a rider is on the bicycle, the area of contact of tyre with road is $24 \times 10^{-4} \mathrm{~m}^{2}$. The mass of rider with bicycle is $120 \mathrm{~kg}$. If a pump delivers a volume $500 \mathrm{~cm}^{3}$ of air in each stroke, then the number of strokes required to inflate the tyre is $\left(\mathrm{g}=10 \mathrm{~ms}^{-2}\right)$
139017 Tyre of a bicycle has volume $2 \times 10^{-3} \mathrm{~m}^{3}$. Initially, the tube is filled $75 \%$ of its volume by air at atmospheric pressure $10^{5} \mathrm{Nm}^{-2}$. When a rider is on the bicycle, the area of contact of tyre with road is $24 \times 10^{-4} \mathrm{~m}^{2}$. The mass of rider with bicycle is $120 \mathrm{~kg}$. If a pump delivers a volume $500 \mathrm{~cm}^{3}$ of air in each stroke, then the number of strokes required to inflate the tyre is $\left(\mathrm{g}=10 \mathrm{~ms}^{-2}\right)$
139017 Tyre of a bicycle has volume $2 \times 10^{-3} \mathrm{~m}^{3}$. Initially, the tube is filled $75 \%$ of its volume by air at atmospheric pressure $10^{5} \mathrm{Nm}^{-2}$. When a rider is on the bicycle, the area of contact of tyre with road is $24 \times 10^{-4} \mathrm{~m}^{2}$. The mass of rider with bicycle is $120 \mathrm{~kg}$. If a pump delivers a volume $500 \mathrm{~cm}^{3}$ of air in each stroke, then the number of strokes required to inflate the tyre is $\left(\mathrm{g}=10 \mathrm{~ms}^{-2}\right)$
139017 Tyre of a bicycle has volume $2 \times 10^{-3} \mathrm{~m}^{3}$. Initially, the tube is filled $75 \%$ of its volume by air at atmospheric pressure $10^{5} \mathrm{Nm}^{-2}$. When a rider is on the bicycle, the area of contact of tyre with road is $24 \times 10^{-4} \mathrm{~m}^{2}$. The mass of rider with bicycle is $120 \mathrm{~kg}$. If a pump delivers a volume $500 \mathrm{~cm}^{3}$ of air in each stroke, then the number of strokes required to inflate the tyre is $\left(\mathrm{g}=10 \mathrm{~ms}^{-2}\right)$