2) The acceleration of a 2kg - body along straight line is expresses as a = -0.002 v m/s². The initial velocity of the body at the beginning of its motion is vo. How far does the body travel until its velocity becomes the half of its initial velocity?
2) The acceleration of a 2kg - body along straight line is expresses as a = -0.002 v m/s². The initial velocity of the body at the beginning of its motion is vo. How far does the body travel until its velocity becomes the half of its initial velocity?
College Physics
11th Edition
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Chapter1: Units, Trigonometry. And Vectors
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Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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Dynamic mechanics
![1) An object, having a weight of 20 N, moves from point A to point B on a smooth surface of a path
in a three-dimensional space. The x- y- and z- coordinates of the points are given respectively in
meters: A (0; 3; 3), B (6; 5; 0). The speed of the object at point A is 18m/s and the force [F = 2x i+
3y j+z k] N is acting on the object during the motion. What is the speed of the object at point B?
2) The acceleration of a 2kg - body along straight line is expresses as a = -0.002 v² m/s². The initial
velocity of the body at the beginning of its motion is vo. How far does the body travel until its
velocity becomes the half of its initial velocity?
3) A 105gr-baseball moves in the horizontal direction to the right with a
velocity of 18m/s. After the baseball is hit with a 3kg - bat, it moves to
the left, in a direction 20° from the horizontal with a velocity of 38m/s.
If the duration of interaction between the baseball and the bat is 0.028s,
what is the average impulsive force (its magnitude and direction) applied
on the baseball by the bat?
20
Take g = 9.81 m/s when you need to use.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Ff60086f2-4733-4261-b011-d91667956ef0%2F64e79b7c-0cd0-4068-9c83-28913175f6eb%2Fou4gz4a_processed.jpeg&w=3840&q=75)
Transcribed Image Text:1) An object, having a weight of 20 N, moves from point A to point B on a smooth surface of a path
in a three-dimensional space. The x- y- and z- coordinates of the points are given respectively in
meters: A (0; 3; 3), B (6; 5; 0). The speed of the object at point A is 18m/s and the force [F = 2x i+
3y j+z k] N is acting on the object during the motion. What is the speed of the object at point B?
2) The acceleration of a 2kg - body along straight line is expresses as a = -0.002 v² m/s². The initial
velocity of the body at the beginning of its motion is vo. How far does the body travel until its
velocity becomes the half of its initial velocity?
3) A 105gr-baseball moves in the horizontal direction to the right with a
velocity of 18m/s. After the baseball is hit with a 3kg - bat, it moves to
the left, in a direction 20° from the horizontal with a velocity of 38m/s.
If the duration of interaction between the baseball and the bat is 0.028s,
what is the average impulsive force (its magnitude and direction) applied
on the baseball by the bat?
20
Take g = 9.81 m/s when you need to use.
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