Using the formula
GPE = m*g*h (mass (kg) * gravitational field strength (N/kg) * height (m) )
We can say that -
100 J = 0.5 * 9.8 * x
x = 100/(0.5 * 9.8)
<u>x = 20.4 m</u>
Your answer is 20.4 m
600. I forgot the measurement. but 600 is correct
Awww im too late but im going to wait and see if he has it
Answer:
This is a chemical property. If iron does rust, this is a slow chemical change since rust is an iron oxide with different properties than iron metal.
Given that,
Puck slide total Deltax = 12m
Puck and board Mk = 0.10
Find the initial speed = ?
We know that,
Vf^2-Vi^2 = 2a Deltax
-Vi^2 = -2MkgDeltax ............(1)
then,
fk = -Mk mg = ma
a = -Mkg .........(2)
From equation (1),
Vi^2 = 2MkgDeltax
Vi = âš2MkgDeltax [g=9.8m/s^2]
Vi = âš2(0.10)(0.98)(12)
Vi = âš0.2(9.8)(12)
Vi = âš1.92(12)
Vi = âš23.52
Vi = 4.8 m/s
Therefore the initial speed of the puck Vi = 4.8 m/s