Question

when a constant force acts upon an object the acceleration of the object varies inversely with its mass. when a certain constant force acts ipon an objec twith mass 21khm the accerlation of the object is 3 m/2^2. If the same force acts upon another object whose mass is 9kg. What would this object's acceleration be?

Answer 1

A AND B

Step-by-step explanation:

Answer 2

Step-by-step explanation:

When a constant force acts upon an object the acceleration of the object varies inversely with its mass.

`a\propto (1)/(m)`

or

`(a_1)/(a_2)=(m_2)/(m_1)`

If m₁ = 21 kg, a₁ = 3 m/s², m₂ = 9 kg

We need to find a₂

So,

`a_2=(m_1a_1)/(m_2)\\\\a_2=(21* 3)/(9)\\\\a_2=7\ m/s^2`

So, if mass is 9 kg, its acceleration is 7 m/s².