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Sagot :
Answer:
See the answers below.
Explanation:
In order to solve this problem we must use the principle of conservation of momentum and the amount of movement. Where the car moves to the left with a negative speed sign while the force of the collision will be taken to the right.
[tex]-m_{car}*v_{car1}+(F*t)=m_{car}*v_{car2}[/tex]
where:
Vcar1 = velocity of the car before the collision = - 15 [m/s]
F = impact force [N]
Vcar2 = velocity of the car after the collision = 2.6 [m/s]
[tex]-(1500*15)+(F*t)=(2.6*1500)\\F*t=22500+3900\\F*t=26400[kg*m/s][/tex]
Where the product of force by Time is equal to the impulse caused by the collision.
[tex]And the force\\F = P/t\\F=26400/0.15\\F=176000[N][/tex]
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