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If a 28-N force causes a rock to accelerate at 4 m/s/s, what is the mass of the rock?

1 Answer

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Answer:

7kg

Step-by-step explanation:

Given parameters:

Force on the rock = 28N

Acceleration = 4m/s²

Unknown:

Mass of the rock = ?

Solution:

According to newton's second law of motion;

Force = mass x acceleration

Insert the given parameters to find the mass;

28 = mass x 4

mass =
(28)/(4) = 7kg

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