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(Solved): EMERGENCY I NEED HELP ASAP PLEASE!!!! PUT ALL NUMERICAL ANSWERS TO THREE SINGIFICANT FIGURES Problem ...



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.

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