Homework Answers
Impulse momentum bar charts for a vertically thrown object
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Part B: create an impulse momentum bar chart for the motion of the ball with the...
A ball is thrown straight up at speed in the presence of gravity. (a) Ignoring air...
A ball is thrown straight up at speed in the presence of gravity. (a) Ignoring air resistance at first, what is the maximum height the ball reaches? (b) Now include Newtonian (quadratic) air resistance, with drag coefficient c. Letting the direction point upwards, write down the equation of motion (be careful with the signs). (c) Solve the equation of motion to find v(t)(= (t)). Remember to check that v(0) = . (d) Without integrating anything yet, calculate the time at...
17) A soccer player is redirecting the ball with her foot. At the instant before it...
17) A soccer player is redirecting the ball with her foot. At the instant before it is contacted by the player's foot, the bal is moving at a velocity (VB) of 6 m/s in the direction shown in the overhead view on the left below i) (1pt) The player wants to speed up the ball's "forward" motion in its current direction while causing its motion to turn to the left of its current direction. If she is to do so,...
Many aspects of a gymnast's motion can be modeled by representing the gymnast by four segments...
Many aspects of a gymnast's motion can be modeled by
representing the gymnast by four segments consisting of arms, torso
(including the head), thighs, and lower legs, as in the figure
below.
Figures a and b
describe a gymnast's motion as he swings about a bar.
A side-view of the gymnast as he swings about the bar. The
gymnast's back is horizontal, his arms are vertical, his thighs are
at an angle of 60° to the horizontal, and his lower...
Impulse and Momentum Name: Date: TA's Name: Learning Objectives: 1. Understanding force ys time curves for...
Impulse and Momentum Name: Date: TA's Name: Learning Objectives: 1. Understanding force ys time curves for a collision. 2. Calculating impulse using force vs. time curves. 3. Understanding the relationship between impulse and momentum. 4. Applying conservation of momentum for inelastic collisions. Apparatus: Aluminum track, track legs, two smart carts, two cart stops, and small black rectangular cart masses. Part A: Collision of a moving cart with a fixed cart cart 1 Cart stop stationary cart cart stop Consider the...
1- A 300 ? mass is attached to a solid 40 ?? long string the other...
1- A 300 ? mass is attached to
a solid 40 ?? long string the other end of which is secured to the
ceiling. The mass is given an initial speed which makes it swing
around a circular path in the horizontal plane without changing its
speed and without changing its height. The object completes 2
revolutions in 2 seconds.
A) What is the magnitude of the angular velocity of this
circular motion? B) Find the tension in the string....
An engineering company is designing and testing a car suspension system. The system has a convent...
An engineering company is designing and testing a car suspension system. The system has a conventional suspension design, consisting of a shock-absorber and spring at each wheel. The shock-absorber provides a damping effect that is proportional to the vertical speed (i.e. up and down motion) of the wheel, and the spring's resistance is proportional to the vertical displacement of the wheel. The design team analyses the suspension system in two separate parts: Part 1 - dynamics of the spring-damper system;...
Newton's Thought Experiment In the seventeenth century, Sir Isaac Newton was studying the nature of motion...
Newton's Thought Experiment In the seventeenth century, Sir Isaac Newton was studying the nature of motion and gravity. He formulated a thought experiment that would eventually become the basis of the development of satellites. Imagine an object is fired from a cannon horizontal to the plane of the earth. The projectile will travel in a horizontal direction and undergo projectile motion as gravity begins to pull the projectile downward However, the earth is a sphere, which means as the projectile...
H(o) s(t) ﹁ | y(t) | lyst) Impulse sample at rate o -B 0 B c) (5 pts) Using your value of B from...
We were unable to transcribe this imageH(o) s(t) ﹁ | y(t) | lyst) Impulse sample at rate o -B 0 B c) (5 pts) Using your value of B from part b, what is minimum value of the sampling rate co, that will allow the filter output y(t) to be perfectly recovered from its impulse sampled version ys(0)? d) (5 pts) What is the purpose of the filter H()? (One sentence answer please.) e) (10 pts) Suppose the sampling rate...
Question 2 According to Newton's Laws of Motion, if I throw a baseball in outer space...
Question 2 According to Newton's Laws of Motion, if I throw a baseball in outer space - far from any other object- how will that ball move over time? (For the sake of this problem, let's neglect my mass) After the force of my hand no longer acts on the ball: Question 2 options: the ball will move forward, but it will gradually slow down and come to a stop once the force of my hand no longer acts on...
Copy this diagram and extend the pole length to create a transversal to the parallel sun rays. Y...
Copy this diagram
and extend the pole length to create a transversal to the parallel
sun rays.
Your explanation in completing the problem should include full
sentences, using words. It should also make sure to refer to any of
the following three key facts you use to determine the angle with
vertex C:
(a) The vertical angles formed by intersection of two lines
are equal.
(b) The Parallel Postulate: If parallel lines are cut by
another line, the corresponding angles...
17) A soccer player is redirecting the ball with her foot. At the instant before it is contacted by the player's foot, the bal is moving at a velocity (VB) of 6 m/s in the direction shown in the overhead view on the left below i) (1pt) The player wants to speed up the ball's "forward" motion in its current direction while causing its motion to turn to the left of its current direction. If she is to do so,...
Many aspects of a gymnast's motion can be modeled by
representing the gymnast by four segments consisting of arms, torso
(including the head), thighs, and lower legs, as in the figure
below.
Figures a and b
describe a gymnast's motion as he swings about a bar.
A side-view of the gymnast as he swings about the bar. The
gymnast's back is horizontal, his arms are vertical, his thighs are
at an angle of 60° to the horizontal, and his lower...
Impulse and Momentum Name: Date: TA's Name: Learning Objectives: 1. Understanding force ys time curves for a collision. 2. Calculating impulse using force vs. time curves. 3. Understanding the relationship between impulse and momentum. 4. Applying conservation of momentum for inelastic collisions. Apparatus: Aluminum track, track legs, two smart carts, two cart stops, and small black rectangular cart masses. Part A: Collision of a moving cart with a fixed cart cart 1 Cart stop stationary cart cart stop Consider the...
1- A 300 ? mass is attached to
a solid 40 ?? long string the other end of which is secured to the
ceiling. The mass is given an initial speed which makes it swing
around a circular path in the horizontal plane without changing its
speed and without changing its height. The object completes 2
revolutions in 2 seconds.
A) What is the magnitude of the angular velocity of this
circular motion? B) Find the tension in the string....
Newton's Thought Experiment In the seventeenth century, Sir Isaac Newton was studying the nature of motion and gravity. He formulated a thought experiment that would eventually become the basis of the development of satellites. Imagine an object is fired from a cannon horizontal to the plane of the earth. The projectile will travel in a horizontal direction and undergo projectile motion as gravity begins to pull the projectile downward However, the earth is a sphere, which means as the projectile...
We were unable to transcribe this imageH(o) s(t) ﹁ | y(t) | lyst) Impulse sample at rate o -B 0 B c) (5 pts) Using your value of B from part b, what is minimum value of the sampling rate co, that will allow the filter output y(t) to be perfectly recovered from its impulse sampled version ys(0)? d) (5 pts) What is the purpose of the filter H()? (One sentence answer please.) e) (10 pts) Suppose the sampling rate...
Copy this diagram
and extend the pole length to create a transversal to the parallel
sun rays.
Your explanation in completing the problem should include full
sentences, using words. It should also make sure to refer to any of
the following three key facts you use to determine the angle with
vertex C:
(a) The vertical angles formed by intersection of two lines
are equal.
(b) The Parallel Postulate: If parallel lines are cut by
another line, the corresponding angles...
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