EMERGENCY I NEED HELP ASAP PLEASE!!!! PUT ALL NUMERICAL ANSWERS TO THREE SINGIFICANT FIGURES Problem 4: (10 points total). A 5-kg object is moving in a
x-y
plane. At time
t=0
, the box crosses the origin travelling with the speed of
9(m)/(s)
in the
+x
direction. It is subjected to a conservative force, which hast the following potential energy function associated with it:
U(x,y)=60y-4x^(2)+125
(units have been omitted, you can assume putting
x
and
y
in meters gives
U
in joules) The forces acts on the box for exactly one second, at which time it has moved to a position given by the coordinates
x=11.6m
and
y=-6.0m
. 4.1: (5 points) Find the speed of the object at the end of the one-second interval. 4.2: (5 points) Find the acceleration of the object at the end of the one-second interval. Express your answer in terms of magnitude and direction.