Explanation:
<h2>Answer:-</h2>
The Object was at rest. So, Initial Velocity is Zero.
- [Initial Velocity]u = 0
- [Final Velocity]v = 20 m/s
- [Time]t = 2 seconds
- Mass = 4kg
- Force = ?
We know that:-
Applying it, we get:-
Hope it helps :)
Answer:
percipitation, i took this tet and got it correct.
Explanation:
Answer:
1 millions times stronger
The correct answer is Democritus
Ok
so here it is
the energ function is a square of compression
at 1 m compression you'll have a 88N force that pushes back
you might think that 1m*88N = 88J potential energy there but it's wrong
why?
because while an 88N force will start reverting the spring back to its original size when the spring comes to... let's say 50 cm compresion that force will only be 44N and dropping to 0 till the spring gets back to full size
therefore you should think this as a geometry problem
if you draw the graph of the function F=kd
you'll have the energy as the area of the triangle defined at some d=x compression and the graph line of F=kd
the corners of the triangle would be (0,0), (x,0), (x,kx)
therefore the area of the triangle is b*h/2
wich is x*kx=E
therefore x^2* 88N/m = 45J
x^2= 0.5113636m^2
x=0.715m