help for the 3 qst pls

3) For a car of 1000kg, the distance between the axes of the tires is 3m. Its center of mass is located 70cm from the ground and 1m away from the front axis. Note that the depth of the car is 2m and the center of mass is placed in the middle of the depth. Find the normal forces in the tires in the following cases. We assume the car moves horizontally form left to right. a. The car is at rest. b. The car accelerates at 5m/s2. c. The car decelerates at 10m/s2. Ans: a) Nback=1635N,Ntront=3270N b) Nb=2218.33N,Nf=2686.67N c) Nb=468.33N,Nf=4436.67N