AP Physics 1· difficulty 1/5
A car cruises at constant on a level road. Which is true about the net force on the car?
It is backward, equal to drag.
It is downward, equal to gravity.
It is forward, equal to the engine force.
It is zero.
Explanation
Constant velocity → zero acceleration → zero <strong>net</strong> force. Engine force balances drag and friction.
Want 10 more like this — adaptive to your weak spots?
A 2.0\text{kg} object accelerates at 4.0\text{m/s}^2. What net force acts on it?…
chevron_rightA 4.0\text{kg} block on a frictionless horizontal table is connected by a string over a frictionless pulley to a 2.0\text{kg} hanging mass. Using g \approx 10\t…
chevron_rightA free-body diagram shows three forces on an object: 10\text{N} right, 4\text{N} left, 3\text{N} up. What is the magnitude of the net force?…
chevron_right