A 7000kg truck of 125 km.h-1 is moving north and collide with a 7000g car which moves with 19.m.s-1 south. after collision the truck moves with 98km.h-1.calculate velocity of the car after collision
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Ответ:
The force between the two charges is directly proportional to the product of the charges and inversely proportional to the square of the distance between them. Hence, if distance between charges is halved (charges remaining kept constant), the force between the two charges is quadrupled.