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Lapatulllka [165]
2 years ago
13

A man pushed a cabinet with a force of 200N. What is the mass of the cabinet that accelerates 4 m/s/s?​

Physics
1 answer:
ELEN [110]2 years ago
5 0

Answer:

\boxed {\boxed {\sf 50 \ kg}}

Explanation:

We are asked to find the mass of a cabinet, given the force and acceleration. According to Newton's Second Law of Motion, force is the product of mass and acceleration. The formula for this is:

F= m \times a

The force is 200 Newtons, but we should convert the units to make unit cancellation easier. 1 Newton is equal to 1 kilogram meter per second squared, so the force of 200 Newtons is 200 kilogram meters per second squared.

The mass is unknown and the acceleration is 4 meters per second per second or 4 meters per second squared.

  • F= 200 kg*m/s²
  • a= 4 m/s²

Substitute the values into the formula.

200 \ kg *m/s^2 = m \times 4 \ m/s^2

We are solving for the mass, m, so we must isolate the variable. It is being multiplied by 4 meters per second squared. The inverse operation of multiplication is division. Divide both sides by 4 m/s²

\frac {200 \ kg *m/s^2}{4 \ m/s^2}= \frac{m \times 4\ m/s^2}{4 \ m/s^2}

\frac {200 \ kg *m/s^2}{4 \ m/s^2} =m

The units of meters per second squared cancel.

\frac {200 \ kg }{4 }=m

50 \ kg =m

The mass of the cabinet is <u>50 kilograms.</u>

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