6
A 4 kg block with a 50 uc charge is attached to an unstretched spring (k = 100 N/m), on a frictionless
surface
If an electric field of 50000 N/C is suddenly applied to
the right, what will be the initial acceleration of the
block? (3 pts)
a
b.
What type of motion does the block experience? Please
explain. [2 pts)
хео
c
Now, instead, consider the case where the same electric field is turned on, but grows slowly from
O to full strength, what will be the final stretch of the spring from equilibrium? (3 pts)