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In: Physics

A 3000 kg minivan moving east at velocity 45 km/h collides with a 1000 kg car...

A 3000 kg minivan moving east at velocity 45 km/h collides with a 1000 kg car moving north at
velocity 55 km/h. The two cars lock together, find their velocity in km/h just after the accident.

Solutions

Expert Solution

Given the mass of the minivan m1 = 3000kg and that of the car m2 = 1000kg. The initial velocity of the minivan is u1 = 45km/hr towards esat and that of car is u2 = 55km/hr towards north. Let v be the final velocity of the minivan-car system.

Taking momentum conservation,

So the magnitude of velocity is 36.44km/hr.

Its direction is given by,

So the direction of velocity is north of east.

Therefore the final velocity of the locked system of minivan and car is 36.44km/hr at an angle north of east.

genius_generous answered 1 year ago
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