1. The problem statement, all variables and given/known data The following camping van with a total mass of 800 kg is connected at point P to the back of a car. The car accelerates with constant acceleration a during 4 seconds from rest until it achieves 60 km/h. Assuming there is no resistance (from air and ground), calculate the normal reaction in the wheels and the components of the contact force acting at point P. 2. Relevant equations 3. The attempt at a solution I'm really confused in this one, so any help to start would be nice.