Initial velocities of a snowmobile collision

  • Thread starter tawrper
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Homework Statement



A police officer arrives at the scene of a collision of the two snowmobiles to find both drivers unconscious. When two vehicles collided, their skis became entangled and the two snowmobiles remained locked together as they skidded to a stop. One driver was thrown clear of the mishap, but the other driver remained in the drivers seat. The posted speed limit in the area is 60km/h. One witness described how driver A was thrown horizontally at a constant speed from his seat (0.5 m above the snow surface) to his final resting position.

the initial angle between driver A and Driver B is 30 degrees

Driver A was thrown 8m

Mass of Driver A 80kg

Mass of driver B 90kg

Mass of vehicle A 270 kg

Mass of vehicle B 310kg

Before collision: Vehicle B East30degrees North Vehicle A East

Direction of entangles vehicles after collision East 15 degrees North

length if final skid 18m

displacement of driver A from point of impact: 8m

Time from impact to end skid 2.5s

I need to determine the initial velocities of both snowmobiles.

here is a picture of the question:

IMG_0193-1.jpg


Homework Equations


mv1 + mv2 = mv1' + mv2

The Attempt at a Solution


driver a: 670 kg x 25.92 km/h / 350 = 49.62 km/h

driver b: 670 kg x 25.92 km/h / 400 = 43.416 km/h

i know its very wrong, its just an attempt. i really need alot of help
 

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