Posted by **Casey** on Tuesday, July 5, 2011 at 5:27pm.

A car is moving to the right with a speed of 20 m/s. A large SUV is moving to

the left at a speed of 20 m/s. The SUV has a mass three times that of the small car. They have

an totally inelastic head-on collision in an intersection. There are two passengers in each

vehicle, one seat-belted and the other not seat-belted. All the passengers weigh the same. The

non-seat-belted passengers both collide with the dashboard of their respective cars.

Rank the magnitude of the IMPULSE experienced by the four passengers in this collision

from smallest to largest. If two impulses are equal, then show an equals sign between

them.

a. SUV belted = SUV non belted < Car Belted = Car non belted

b. Car belted = Car Non belted < SUV belted = SUV non belted

c. SUV belted < SUV non belted < Car belted < Car Non Belted

d. SUV belted < Car belted < SUV non belted < Car non belted

I'm very confused but am guessing that the answer is a.

Rank the magnitude of the FORCES experienced by the four passengers in this collision,

from smallest to largest. If two forces are equal, then show an equals sign between them.

b. Car belted = Car Non belted < SUV belted = SUV non belted

c. SUV belted < SUV non belted < Car belted < Car Non Belted

d. SUV belted < Car belted < SUV non belted < Car non belted

I believe d is the correct answer

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