A car is being towed at constant velocity on a horizontal road using a horizontal chain. The tension
in the chain must be equal to the weight of the car in order to maintain constant velocity.

A) True B) False

B) False

Explanation:

Because the car is being towed at a constant velocity, the car has a net acceleration of zero. A free-body diagram with the car will have the weight of the car pulling down, the normal of the road pushing up, the tension of the rope pulling the car, and the frictional force pulling away.

Since the car has no net force acting on it, the tension in the rope equals the frictional force opposing its motion. Usually elementary physics courses assert that the frictional force is proportional to the normal force, but not equal the normal force. This means that the tension in the chain does not equal the weight of the car.

The tension in the chain does not equal the weight of the car. The statement is false.

explanation: magnetic pole, region at each end of a magnet where the external magnetic field is strongest. the south-seeking pole, or any pole similar to it, is called a south magnetic pole. unlike poles of different magnets attract each other; like poles repel each other.

the earths atmosphere is made up of nitrogen and oxygen. solids can turn into gasses through a process called sublimation. sublimation is the transition of a substance directly from the solid to the gas phase, without passing through the intermediate liquid phase.

hope this : d