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3 years ago

a resultant force of 4n acts on an object of mass 0.50kg for 3 seconds. what is the change in velocity caused by this force

Physics

1 answer:

Vilka [71]3 years ago

6 0

Answer:

24 m/s

Explanation:

force = mass ×acceleration

acceleration = force / mass

acceleration = 4/0.50

acceleration = 8.0 m/s^2

acceleration = change in velocity /time

hence

change in velocity = acceleration × time

change in velocity = 8×3

change in velocity = 24 m/s

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3 years ago

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$4.012\frac{gr}{cm^3}$

Explanation

the density of an object is given by:

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Step 1

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a)find the volume of the rectangular bar.

the volume of a rectangular prism is given by:

$\text{Volume}=\text{ length}\cdot widht\cdot depth$

replace

$\begin{gathered} \text{Volume}=(\text{ 2.63}\cdot2.19\cdot1.96)(cm^3) \\ \text{Volume}=11.289012(cm^3) \end{gathered}$

Step 2

now,

Let

$\begin{gathered} \text{Volume}=11.289012(cm^3) \\ \text{mass}=\text{ 45.3 gr} \end{gathered}$

replace in the formula

$\begin{gathered} \text{Density(d)}=\frac{mass(m)}{\text{volume(v)}} \\ d=\frac{45.3\text{ gr}}{11.289012(cm^3)} \\ d=4.012\frac{gr}{cm^3} \end{gathered}$

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1 year ago

a resultant force of 4n acts on an object of mass 0.50kg for 3 seconds. what is the change in velocity caused by this force​

a resultant force of 4n acts on an object of mass 0.50kg for 3 seconds. what is the change in velocity caused by this force