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.
*Towing requires installation of power steering fluid and automatic tranmission fluid-cooler, both available exclusively from your Honda dealer. Premuim unleaded fuel is recommended when towing above 3500 lbs. Capacity of 4500 lbs. is for boat trailers and 3500 lbs. for all other trailers. Refer to the owner's manual for additional towing information.