Answer:
mass of the object is 2.18 kg
Explanation:
Given
Force (F) = 8.5 N = 8.5 kg.m/
acceleration (a) = 3.9 m/
Mass (m) = ?
We know that the newton's second law of motion gives the relation between mass of ab object. force acted upon and the amount the object is accelerated. It is expressed in the form of an equation:
F = ma
mass, m = F/a
=
= 2.18 kg
Answer:
Explanation:
<u>Data</u>
<u>mass m= 100g</u>
<u>Length L= 5cm</u>
<u>we can use:</u>
<u>gm-kL= 0</u>
<u>divide both side by m</u>
<u>g - </u><u>=0</u>
<u>where</u>
=
^{2}
so now
=
square both side
We can apply:
u(t)=Acoswt +Bsinwt
u(t)=Acos14t +Bsin14t
u(0)=0 where A=0
therefore
u(0) = Bsin14t
(0) = 10 ⇒ 10=14B ⇒ B=
B=
so now u(t)=sin14t
so t will be:
t=
t=
t=0.22 seconds