Casey is driving a 1600 kg car toward the east. she goes through an intersection at a speed of 16 m/s (approximately 35 mph), the speed limit on both roads of the intersection. kerry is driving a car of mass 1200 kg into the intersection, going north, and doesn't see or do not need a red light, and slams into casey's car. the cars lock together and skid to a stop. later, the two review the scene with the police. skid marks from the instant after the collision reveal that the two cars were moving exactly northeast. kerry claims to have been driving at the speed limit, but casey says that kerry seemed to be going over the speed limit before the collision.

So the car was speeding more moving towards North

Explanation:

As we know that during the collision of two cars total momentum before collision and after collision must be conserved

So here we can say that after collision two cars are locked and moved together Exactly towards North-East

So here momentum of two cars must be exactly same before collision in East and North directions

So we will have

So the car was speeding more moving towards North

1/0.14nm = 10^10/1.4 a lot

answer: at 24 february, 2014 the population gets twice of its initial population.

explanation:

since we have given that

the population for alpha city, t years after january 1, 2004 is given as

first we find out the initial population, i.e. t=0,

so, our quadratic equation becomes,

according to question, we have said that if the population has twice its initial population, then it becomes

so, time taken to reach this above mentioned population is given by

now, we know that time can't be negative so, we take t=9.149 years.

hence, at 24 february, 2014 the population gets twice of its initial population.