Question

Bvg of mass 5x1o ka thes into a car and eis squashed. C was m to This happened in o.ols what uos the Sorce os the bua on the car? wha+ was the torce of the car on the bua? Impulse? hange in velocity of the bu ation Torce

Answer 1

Impulse= change in momentum =average force * time interval

$Impulse=F_{av}*\Delta t=m\Delta v$

$\Delta v =v_{f}-v_{i}$

Given $m=5*10^{-6}kg$

$v_{i}=1m/s$

$v_{f}=0m/s$

$\Delta t=0.01s$

$F_{av}*\Delta t=m\Delta v$

$F_{av}*0.01s=5*10^{-6}kg(0m/s-1m/s)$

$F_{av}*0.01=-5*10^{-6}$

$F_{av}=-5*10^{-4}N$ (-ve sign shows force is opposite to direction of motion)

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Force of bug on car will be equal to average force

ANSWER: $F=5*10^{-4}N$

Force of car on bug will be equal and opposite to force of bug on car

ANSWER: $F=5*10^{-4}N$

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$Impulse=F_{av}*\Delta t$

$Impulse=5*10^{-4}*0.01s$

ANSWER: $Impulse=5*10^{-6}Ns$

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