Update: part A was: Use conservation of energy to calculate the linear speed of the yo-yo just before it reaches the end of its 1.5 m long string, if it is released from rest. v=1.2 m/s.Follow.e know linear KE=1/2*m*v^2 and rotational KE=1/2*I*w^2 where I is the moment of inertia and in this case it is I=mr^2. So....
We always recommend having at least a couple of thousand pounds of towing capacity in excess of what your trailer weighs, and our 4,300-pound test trailer was probably a fair representation of what people will be towing with a Grand Cherokee.
2017 Jeep Cherokee. The 2017 Cherokee has the highest towing capacity in the compact SUV class; it's rated to tow up to 4,500 pounds when equipped with the optional 271-hp V-6 and Trailer Tow Package. The package includes extra engine and transmission cooling and different final-drive gearing, among other things.