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-yplane. At time
t=0, the box crosses the origin travelling with the speed of
9(m)/(s)in the
+xdirection. 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
xand
yin meters gives
Uin 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=11.6mand
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.