A small object with mass 4.30 kg moves counterclockwise with constant speed 1.55 rad/s in a circle of radius 3.40 m centered at the origin. It starts at the point with position vector 3.40î m. Then it undergoes an angular displacement of 8.85 rad. (a) What is its new position vector? -2.85i + 1.87j (b) In what quadrant is the object located and what angle does its position vector make with the positive x-axis? second vy at 147 (c) What is its velocity? -2.86i – 4.42j m/s (d) In what direction is it moving? 123 x The response you submitted has the wrong sign.° from the +x direction. (e) What is its acceleration? m/s2 (f) Make a sketch of its position, velocity, and acceleration vectors. Choose File No file chosen This answer has not been graded yet. (g) What total force is exerted on the object? N

Question

how to solve  part e f g from this question and why is d wrong?

A small object with mass 4.30 kg moves counterclockwise with constant speed 1.55 rad/s in a circle of radius 3.40 m centered at the origin. It starts at the point with position vector 3.40î m. Then it undergoes an
angular displacement of 8.85 rad.
(a) What is its new position vector?
-2.85i + 1.87j
(b) In what quadrant is the object located and what angle does its position vector make with the positive x-axis?
second
vy at 147
(c) What is its velocity?
-2.86i – 4.42j
m/s
(d) In what direction is it moving?
123 x
The response you submitted has the wrong sign.° from the +x direction.
(e) What is its acceleration?
m/s2
(f) Make a sketch of its position, velocity, and acceleration vectors. Choose File No file chosen
This answer has not been graded yet.
(g) What total force is exerted on the object?
N
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Transcribed Image Text

A small object with mass 4.30 kg moves counterclockwise with constant speed 1.55 rad/s in a circle of radius 3.40 m centered at the origin. It starts at the point with position vector 3.40î m. Then it undergoes an angular displacement of 8.85 rad. (a) What is its new position vector? -2.85i + 1.87j (b) In what quadrant is the object located and what angle does its position vector make with the positive x-axis? second vy at 147 (c) What is its velocity? -2.86i – 4.42j m/s (d) In what direction is it moving? 123 x The response you submitted has the wrong sign.° from the +x direction. (e) What is its acceleration? m/s2 (f) Make a sketch of its position, velocity, and acceleration vectors. Choose File No file chosen This answer has not been graded yet. (g) What total force is exerted on the object? N

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