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Sagot :
a. The net force from t = 1 to t = 6 s is 112 N
b. The net force from t = 7 to t = 12 s is 0 N
Force
Force is that thing which causes a change in motion of an object. The net force is given mathematically as F = ma where
- m = mass of object and
- a = acceleration of object
Net force
This is the resultant sum of all the forces acting on an object. It is also given by F = ma where
- m = mass of object and
- a = net acceleration of object
a. Net force from t = 1 to t = 6 s
The net force from t = 1 to t = 6 s is 112 N
From the table from time t = 1 to t = 6 s, the acceleration a = 1.4 m/s². Since m = 80 kg,
F = ma
= 80 kg × 1.4 m/s²
= 112 kgm/s²
= 112 N
So, the net force from t = 1 to t = 6 s is 112 N
b. Net force from t = 7 to 12 s
The net force from t = 7 to t = 12 s is 0 N
From the table from t = 7 to t = 12 s, the acceleration a = 0 m/s²
Since m = 80 kg,
F = ma
= 80 kg × 0 m/s²
= 0 kgm/s²
= 0 N
So, the net force from t = 7 to t = 12 s is 0 N
Learn more about net force here:
https://brainly.com/question/14361879
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