A mass accelerate uniformly when the resultant force acting on it is what?
non-zero and constant.
constant but non zero
When a mass accelerates uniformly, the resultant force acting on it is equal to the product of its mass (m) and acceleration (a), according to Newton's second law of motion.
Resultant Force (F) = mass (m) × acceleration (a)
This means that if a mass is accelerating uniformly, there must be a net force acting on it, and the magnitude of this force is directly proportional to both the mass and acceleration of the object.
When a mass accelerates uniformly, it means that its velocity increases by the same amount in equal intervals of time. According to Newton's second law of motion, the acceleration (a) of an object is directly proportional to the net force (F) acting on it and inversely proportional to its mass (m). Mathematically, this can be expressed as:
F = m * a
So, in order for a mass to accelerate uniformly, the resultant force acting on it should be directly proportional to its acceleration and inversely proportional to its mass. In other words, if you increase the force applied to an object or decrease its mass, the acceleration will increase and vice versa.
To determine the resultant force acting on a mass for uniform acceleration, you need to know the mass of the object and its acceleration. Once you have this information, you can use the equation:
F = m * a
where F is the resultant force, m is the mass of the object, and a is its acceleration. Simply plug in the known values and calculate the result.