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.
Jeep Grand Cherokee. Although the Jeep Grand Cherokee is the smallest vehicle on our list, it still offers some excellent towing and hauling capabilities. The standard V6 is highly potent, boasting a 6,200-lb towing capacity -- a figure that exceeds nearly all midsize SUV rivals.