Force is based upon both mass and acceleration.
a. true
b. false

Answer

True

Explanation

Force is a pull or a push. Force a body to move after a pull/pull a force has to me applied. The mass of the body determines the force to b applied. For lagger masses, more force is needed to make it move.

When this pull or push is made, the body moves from its initial position, say at rest and it acquires a certain velocity. So,we can say that the body accelerated since there was change in velocity.

The better definition of force is;

Force is that that changes a body's state of motion or shape.

The newton's 2nd law of motion is summarized by the equation

F = ma, meaning force is the product of mass and acceleration.

air exerts forces on falling objects near earth’s surface.

explanation:

the term 'free falls' refer to object that are falling towards the earth, in a situation in which gravity is the only force acting on the object.

for an object in free fall, the acceleration is constant (g, the gravitational acceleration), and so the velocity of the object constantly increases.

for objects near earth's surface, there is always another force acting on the object: the resistance due to the air. this force is opposed to the direction of fall of the object, and it is proportional to the velocity of the object, so as the object falls down, this force increases up to a point when it balances the force of gravity, and the object continues its motion at constant velocity (called terminal velocity). since in this case gravity is not the only force acting on the object, we are not in a situation of free fall.

we're given that v₀ = 0 and a = 5.4 m/s². therefore, since v = at + v₀ for constant acceleration the equation for velocity is

after 28s,

m/s

which i would round to 150 m/s as my final answer