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Zielflug [23.3K]
3 years ago
7

Calculate the net acceleration acting on a 40 kg box being pushed across a horizontal floor. There is a 400 N normal force, a 19

5 N applied force, and a 55 N force of friction resisting any sliding motion. Assume g = 10 m/s ^ 2
Physics
1 answer:
Dominik [7]3 years ago
3 0

Answer:

Net acceleration = 3.5m/s²

Explanation:

Given the following data;

Mass, m = 40kg

Normal force, Fn = 400N

Applied force, Fapp = 195N

Force of friction, Ff = 55N

Mathematically, the net force is given by the formula;

F_{net} = F_{app} - F_{f}

Substituting into the equation, we have;

F_{net} = 195 - 55

F_{net} = 140

<em>To find the acceleration;</em>

F_{net} = ma

Making acceleration "a" the subject of formula;

a = \frac {F_{net}}{m}

a = \frac {140}{40}

Net acceleration, a = 3.5m/s²

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