Question

PART THREE Multipart, "scaffolded". SHOW YOUR WORK as applicable. of 6 k i subject to a orseryative force for which the potent energy function is U--ary', where a-2.25 N/m2 (a) (1 point) Find the potential energy Ua at point Am(1 m, 2 m) and the potential 7. An object with a mass of 0.6 kg i 7. As okbjpot writh a energy U, at point B=(4 m, 4 m). (b) (I point) Use your answers to (a) to find the work done by the force if the object moves from point A to point B (c) (2 points) Find functions (likely of x and y) for the x- and y- components of the force on the object using the potential energy function. d) (2 pointe) Use your answer to (e) anud the deinition of work to find the work done straight path from point A to a third point C by this force (4 moving the object in a m, 2 m). (Hint: y 2 for this motion.) (e) (2 points) Use your answer to (d) and the definition of work to find the work done moving the object from point C to point B. (Hint: 4 for this motion.) (D (1 point) Declare whether this is in fact a conservative force by comparing the work you found in (b) to the total of the two works you found in (d) and (e). Explain why your comparison does or does not indicate that the force is conservati ve. Page 7

Answer 1

A-98 5-ㄒㄧㄑㄨ-)