Engine of a jet aircraft applies a thrust force of {10^5},N during take off and causes plane to atta

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4-1.Newton's Laws of Motion

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The engine of a jet aircraft applies a thrust force of ${10^5}\,N$ during take off and causes the plane to attain a velocity of $1\ km/sec$ in $10\ sec$. The mass of the plane is

A${10^2}\,kg$

B${10^3}\,kg$

C${10^4}\,kg$

D${10^5}\,kg$

Solution

(b) Acceleration produced in jet = $\frac{{{\rm{Change \,in \,velocity}}}}{{{\rm{Time}}}}$
$a = \frac{{({{10}^3} – 0)}}{{10}}$$ = 100m/{s^2}$
$\therefore $ Mass = $\frac{{{\rm{Force}}}}{{{\rm{Acceleration}}}} = \frac{{{{10}^5}}}{{{{10}^2}}} = {10^3}kg$.

Standard 11

Physics

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The engine of a jet aircraft applies a thrust force of ${10^5}\,N$ during take off and causes the plane to attain a velocity of $1\ km/sec$ in $10\ sec$. The mass of the plane is

Solution

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