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I got everything but part E correct. Not sure about how to go about doing it The

ID: 2182557 • Letter: I

Question

I got everything but part E correct. Not sure about how to go about doing it

The block in the figure below lies on a horizontal frictionless surface and is attached to the free end of the spring, with a spring constant of 65 N/m. Initially, the spring is at its relaxed length and the block is stationary at position x = 0. Then an applied force with a constant magnitude of 2.9 N pulls the block in the positive direction of the x axis, stretching the spring until the block stops.
Assume that the stopping point is reached.

(a) What is the position of the block?


.0892 m

(b) What is the work that has been done on the block by the applied force?


.259 J

(c) What is the work that has been done on the block by the spring force?


-.259 J
During the block's displacement, find the following values.
(d) The block's position when its kinetic energy is maximum.


.0446 m

(e) The value of that maximum kinetic energy.


_______ mJ

Explanation / Answer

maximum KE = 0.5 * k * x ^2 = 258mJ