Question

A worker applies a constant horizontal force 20 N to a 40 kg box resting on the level floor with negligible friction. Determine the acceleration of the box.

Answer 1

Answer:

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Explanation:

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Answer 2

Answer:

Explanation:

Concept

Force is anything that causes an object to move in an unnatural manner.  Force can be either simply a push or a pull on an object.

Explanation

• Force is anything that causes an object to move in an unnatural manner.  Force can be either simply a push or a pull on an object.

• The force exerted on an object with certain mass  causes it to change velocity.

• Force is an external agent that can change the state of rest or motion of a specific body.
• It has a magnitude as well as a direction.
• The direction of the force is the point where force is applied, and the application of force is the point where force is applied.
• Force can be defined as the product of mass and acceleration. The unit of force is Newton.

$F = m * a$

where $F$→ Force

           $m$ → mass

          $a$ → acceleration

Given

Force , $F$= $20 N$

Mass , $M$ =$40 kg$

To Find

Acceleration , $a$

Solution

By the definition and formula of force ,

$F=m*a\\\\20=40 *a$

$a=\frac{20}{40} \\\\a=\frac{1}{2}\\ \\a=0.5 m/s^{2}$

Acceleration of the box , $a = 0.5 m /s^{2}$

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