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.
Although the standard V6 on the Jeep Grand Cherokee can handle a bit of towing, if you have a heavy load, you will need the optional 360 horsepower 5.7-liter V8. This engine is good for 7,400 pounds! Next on the list of best towing SUVs is the Toyota Highlander. Its 3.5-liter V6 is standard on Plus and SE and optional on the Base. Don't let the V6 fool you, this engine is surprisingly strong. It can produce 260 horsepower and 248 pound-feet of torque, and tow up to 5,000 pounds.