00:01
So here we have a collision between a truck and a car, and we have to find the car's acceleration, given both vehicles ' mass and the acceleration of the truck.
00:12
And so now from the question, we know that the net force on each vehicle is essentially the force exerted by the other.
00:20
And from newton's third law, we know that each force has an equal and opposite reaction force.
00:27
So the force on the truck from the car is going to be equal to the force on the car from the truck and vice versa.
00:36
So now that these two forces are equal and each force is the only force acting on the vehicle, respectively.
00:48
So the force on the car from the truck is the only force that we are considering that is acting on the car and vice versa.
00:56
So we can also use newton's second law here to say that the force is equal to the mass times the acceleration.
01:06
And of course we can do that for the truck as well.
01:09
And so since we know the truck's acceleration and mass, we can calculate the force on the truck.
01:17
So let's say we have force is equal to...