Hello!
What you are describing here is Newton's second law, this is very important to know because it gives you the equation to answer this question.
Newton's second law states:
Fnet = (mass) * (acceleration)
and its unit of measurement is the Newton (kg * m/s^2), that is dimensional analysis coming from -
mass = kg
acceleration = m/s^2
Since the equation is the mass times the acceleration, you do the same with the units so it gives you (kg * m/s^2) which is known as Newtons. (Just as a side note!)
On wards!
Known:
m = 2 kg
a = 20 m/s^2
Unknown:
Fnet = ?
=======================================
Alright we have 2 known's and 1 unknown, that's good because now we can solve for the net force!
Fnet = m * a
Fnet = 2 kg * 20 m/s^2
Fnet = 40 N
In conclusion, it takes 40 Newtons of force to accelerate a 2 kg rock 20 m/s^2 in gravity free space!
Hope this helps & good luck with your studies
P.S. Make sure you re-visit newtons second law so you can flex on everyone in class and be relaxed! It is a very important topic so I recommend khan academy videos, they are awesome!
The net force required to accelerate the given mass of rock to the given value in gravity free space is 40 Newtons.
A force is simply referred to as either a push or pull of an object resulting from the object's interaction with another object.
From Newton's Second Law, force is expressed as;
F = m × a
Where is mass of object and a is the acceleration
Given the data in the question;
We substitute our given values into the expression above.
F = m × a
F = 2kg × 20m/s²
F = 40kgm/s²
F = 40N
Therefore, the net force required to accelerate the given mass of rock to the given value in gravity free space is 40 Newtons.
Learn more about force here: https://brainly.com/question/27196358
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