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Sagot :
Answer:
F = 246.4 N
Explanation:
Concepts:
Newton's Laws Of Motion
First Law: (Law of Inertia)
- Inertia refers to the tendency of an object to resist any change in its state of motion. Inertia is a measure of the objects mass.
Second Law:
- refers to an object's motion when a net force does not equal zero. Acceleration is directly proportional to the net force and inversely proportional to the object's mass.
Third Law: (Action - Reaction)
- Whenever one object exerts a force on a second object, the second objects exert an equal but opposite force on the first.
Weight:
- Force of gravity is the weight of an object and is measured in Newtons.
Friction:
- Frictional forces always oppose motion. The frictional forces ([tex]F_f[/tex]) is proportional to the coefficient of friction (Ц) and to the normal force [tex](F_n) F_f=uF_n[/tex].
- The normal force is a contact force which acts perpendicular to the common surface of contact.
Now onto the steps:
----------------------------------
F = mΔV ÷ t
F = 0.093 x 75 ÷ 0.028
F = 246.4 N
Therefore, the average net force acted on the object during this time interval is 246.6 Newtons.
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