Q. define work derive work energy equation?

1.	Q. define work derive work energy equation?
Answer» Answer: Suppose a constant net force FNET acts on an object of MASS m over some distance delta x. Newton's Second Law TELLS us that the object will have an ACCELERATION a = Fnet/m. If the object's initial velocity was vo and its final velocity is v, kinematics tells us that: v squared = v sub 0 squared etc. Multiplying both sides of this equation by the object's mass, m, gives: m times v squared, etc. Rearranging: 2 m a delta x = etc. Since Fnet = ma (Newton's Second Law), we can substitute: 2 Fnet delta x = etc. then divide both sides of the equation by 2: thanks!

Answer»

Answer:

Suppose a constant net force FNET acts on an object of MASS m over some distance delta x. Newton's Second Law TELLS us that the object will have an ACCELERATION a = Fnet/m. If the object's initial velocity was vo and its final velocity is v, kinematics tells us that:

v squared = v sub 0 squared etc.

Multiplying both sides of this equation by the object's mass, m, gives:

m times v squared, etc.

Rearranging:

2 m a delta x = etc.

Since Fnet = ma (Newton's Second Law), we can substitute:

2 Fnet delta x = etc.

then divide both sides of the equation by 2:

thanks!

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