Legitemal
  • Legitemal
I will Give A Medal To best answer. At a race track, a car of mass 2000 kg crashes into a concrete wall at a speed of 77 m/s. a. If the car comes to a stop when it hits the wall, what is the magnitude of the impulse applied to the car? b. To make things safer, the race track installs barrels of sand along the wall. If the car crashes into the barrels, the time it takes to stop will be increased by a factor of 3, as compared with hitting a concrete wall. How does this affect the force applied to the car during a crash?
Physics
At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium voluptatum deleniti atque corrupti quos dolores et quas molestias excepturi sint occaecati cupiditate non provident, similique sunt in culpa qui officia deserunt mollitia animi, id est laborum et dolorum fuga. Et harum quidem rerum facilis est et expedita distinctio. Nam libero tempore, cum soluta nobis est eligendi optio cumque nihil impedit quo minus id quod maxime placeat facere possimus, omnis voluptas assumenda est, omnis dolor repellendus. Itaque earum rerum hic tenetur a sapiente delectus, ut aut reiciendis voluptatibus maiores alias consequatur aut perferendis doloribus asperiores repellat.

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Legitemal
  • Legitemal
I will Give A Medal To best answer. At a race track, a car of mass 2000 kg crashes into a concrete wall at a speed of 77 m/s. a. If the car comes to a stop when it hits the wall, what is the magnitude of the impulse applied to the car? b. To make things safer, the race track installs barrels of sand along the wall. If the car crashes into the barrels, the time it takes to stop will be increased by a factor of 3, as compared with hitting a concrete wall. How does this affect the force applied to the car during a crash?
Physics
chestercat
  • chestercat
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At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium voluptatum deleniti atque corrupti quos dolores et quas molestias excepturi sint occaecati cupiditate non provident, similique sunt in culpa qui officia deserunt mollitia animi, id est laborum et dolorum fuga. Et harum quidem rerum facilis est et expedita distinctio. Nam libero tempore, cum soluta nobis est eligendi optio cumque nihil impedit quo minus id quod maxime placeat facere possimus, omnis voluptas assumenda est, omnis dolor repellendus. Itaque earum rerum hic tenetur a sapiente delectus, ut aut reiciendis voluptatibus maiores alias consequatur aut perferendis doloribus asperiores repellat.

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shamim
  • shamim
a. U know impulse on car=J=F*t=?
shamim
  • shamim
U know F*t=mv-mu=?
shamim
  • shamim
Here m=mass of ur car v=final velocity of car u=initial velocity of car

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shamim
  • shamim
m,u,v given in ur question J=?
anonymous
  • anonymous
But we don't know time ?

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