Author Question: A force acting on a 2.00 kg object is given by F(x) = (2.00 N/m)x + (1.00 N/m3)x3. An object starts ... (Read 1642 times)

Chelseaamend · **on:** Jul 29, 2018

A force acting on a 2.00 kg object is given by F(x) = (2.00 N/m)x + (1.00 N/m3)x3. An object starts at rest at x = 1.00 m. What is speed of the object when it reaches x = 2.00 m?

A)

1.23 m/s
B)

0.650 m/s
C)

2.60 m/s
D)

1.78 m/s
E)

The object does not reach 2.00 m because the increase in potential energy would imply a negative kinetic energy.

Question 2

If the image distance is negative, the image formed by a mirror is a(n)

A)

real image.
B)

virtual image.
C)

imaginary image.
D)

positive image.
E)

negative image.