2 A van of mass 3600 kg is towing a trailer of mass 1200 kg along a straight horizontal road using a light horizontal rope. There are resistance forces of 700 N on the van and 300 N on the trailer.
- The driving force exerted by the van is 2500 N .
Find the tension in the rope.
The driving force is now removed and the van driver applies a braking force which acts only on the van. The resistance forces remain unchanged. - Find the least possible value of the braking force which will cause the rope to become slack.