Question

How fast will an object with a mass of `8 kg` accelerate if a force of `5 N` is constantly applied to it?

Answer 1

`a="1 m/s"^2`.

Explanation:

We can use Newton's second law of motion, which states that the acceleration of a body is directly proportional to the net force acting on it and inversely proportional to its mass, which is represented by the formula `a=F/m`.

Substitute the given values into the formula.

`a=(9"N")/(8"kg")`

`1 "N"=1 "kg" * "m/s"^2"`

Rewrite the formula with the units that make up a Newton.

`a=(9 cancel"kg" * "m/s"^2)/(8cancel"kg")`

`a="1 m/s"^2"` (rounded to one significant figure)