A small piece of paper is dropped and flutters to the floor. Is the piece of paper accelerating at any time during this motion? Explain.

Question

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Answer 1

Textbook Question

Chapter 3, Problem 1CQ

A small piece of paper is dropped and flutters to the floor. Is the piece of paper accelerating at any time during this motion? Explain.

Expert Solution & Answer

To determine

Whether the piece of paper is accelerating at any time of the motion.

Answer to Problem 1CQ

The piece of paper is accelerating at all point of the time during its motion.

Explanation of Solution

The rate of change of velocity is called acceleration. Acceleration is a vector quantity, which contains both magnitude and direction.

When a piece of paper is dropped the initial velocity of the paper is zero. This is because the paper starts from rest. As the paper falls the gravity acts on the paper and the paper gets accelerated. Due to the presence of air resistance, the downward motion of the paper is not smooth and it begins to flutter. Fluttering is also indicates acceleration of the paper. Thus, the velocity of the falling paper changes and hence the paper attains the acceleration.

Conclusion:

Therefore, the piece of paper is accelerating at all point of the time during its motion.

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The force of the quadriceps (Fq) and force of the patellar tendon (Fp) is identical (i.e., 1000 N each). In the figure below angle in blue is Θ and the in green is half Θ (i.e., Θ/2). A) Calculate the patellar reaction force (i.e., R resultant vector is the sum of the horizontal component of the quadriceps and patellar tendon force) at the following joint angles: you need to provide a diagram showing the vector and its components for each part. a1) Θ = 160 degrees, a2) Θ = 90 degrees. NOTE: USE ONLY TRIGNOMETRIC FUNCTIONS (SIN/TAN/COS, NO LAW OF COSINES, NO COMPLICATED ALGEBRAIC EQUATIONS OR ANYTHING ELSE, ETC. Question A has 2 parts!

Answer 2

Textbook Question

Chapter 3, Problem 1CQ

A small piece of paper is dropped and flutters to the floor. Is the piece of paper accelerating at any time during this motion? Explain.

Expert Solution & Answer

To determine

Whether the piece of paper is accelerating at any time of the motion.

Answer to Problem 1CQ

The piece of paper is accelerating at all point of the time during its motion.

Explanation of Solution

The rate of change of velocity is called acceleration. Acceleration is a vector quantity, which contains both magnitude and direction.

When a piece of paper is dropped the initial velocity of the paper is zero. This is because the paper starts from rest. As the paper falls the gravity acts on the paper and the paper gets accelerated. Due to the presence of air resistance, the downward motion of the paper is not smooth and it begins to flutter. Fluttering is also indicates acceleration of the paper. Thus, the velocity of the falling paper changes and hence the paper attains the acceleration.

Conclusion:

Therefore, the piece of paper is accelerating at all point of the time during its motion.

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Answer 3

Textbook Question

Chapter 3, Problem 1CQ

A small piece of paper is dropped and flutters to the floor. Is the piece of paper accelerating at any time during this motion? Explain.

Expert Solution & Answer

To determine

Whether the piece of paper is accelerating at any time of the motion.

Answer to Problem 1CQ

The piece of paper is accelerating at all point of the time during its motion.

Explanation of Solution

The rate of change of velocity is called acceleration. Acceleration is a vector quantity, which contains both magnitude and direction.

When a piece of paper is dropped the initial velocity of the paper is zero. This is because the paper starts from rest. As the paper falls the gravity acts on the paper and the paper gets accelerated. Due to the presence of air resistance, the downward motion of the paper is not smooth and it begins to flutter. Fluttering is also indicates acceleration of the paper. Thus, the velocity of the falling paper changes and hence the paper attains the acceleration.

Conclusion:

Therefore, the piece of paper is accelerating at all point of the time during its motion.

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Answer 4

Textbook Question

Chapter 3, Problem 1CQ

A small piece of paper is dropped and flutters to the floor. Is the piece of paper accelerating at any time during this motion? Explain.

Expert Solution & Answer

To determine

Whether the piece of paper is accelerating at any time of the motion.

Answer to Problem 1CQ

The piece of paper is accelerating at all point of the time during its motion.

Explanation of Solution

The rate of change of velocity is called acceleration. Acceleration is a vector quantity, which contains both magnitude and direction.

When a piece of paper is dropped the initial velocity of the paper is zero. This is because the paper starts from rest. As the paper falls the gravity acts on the paper and the paper gets accelerated. Due to the presence of air resistance, the downward motion of the paper is not smooth and it begins to flutter. Fluttering is also indicates acceleration of the paper. Thus, the velocity of the falling paper changes and hence the paper attains the acceleration.

Conclusion:

Therefore, the piece of paper is accelerating at all point of the time during its motion.

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Answer 5

Textbook Question

Answer 6

Textbook Question

Answer 7

Expert Solution & Answer

To determine

Whether the piece of paper is accelerating at any time of the motion.

Answer to Problem 1CQ

The piece of paper is accelerating at all point of the time during its motion.

Explanation of Solution

The rate of change of velocity is called acceleration. Acceleration is a vector quantity, which contains both magnitude and direction.

When a piece of paper is dropped the initial velocity of the paper is zero. This is because the paper starts from rest. As the paper falls the gravity acts on the paper and the paper gets accelerated. Due to the presence of air resistance, the downward motion of the paper is not smooth and it begins to flutter. Fluttering is also indicates acceleration of the paper. Thus, the velocity of the falling paper changes and hence the paper attains the acceleration.

Conclusion:

Therefore, the piece of paper is accelerating at all point of the time during its motion.

Answer 8

Expert Solution & Answer

To determine

Whether the piece of paper is accelerating at any time of the motion.

Answer to Problem 1CQ

The piece of paper is accelerating at all point of the time during its motion.

Explanation of Solution

The rate of change of velocity is called acceleration. Acceleration is a vector quantity, which contains both magnitude and direction.

When a piece of paper is dropped the initial velocity of the paper is zero. This is because the paper starts from rest. As the paper falls the gravity acts on the paper and the paper gets accelerated. Due to the presence of air resistance, the downward motion of the paper is not smooth and it begins to flutter. Fluttering is also indicates acceleration of the paper. Thus, the velocity of the falling paper changes and hence the paper attains the acceleration.

Conclusion:

Therefore, the piece of paper is accelerating at all point of the time during its motion.

Answer 9

Expert Solution & Answer

Answer 10

Expert Solution & Answer

Answer 11

To determine

Whether the piece of paper is accelerating at any time of the motion.

Answer 12

Answer to Problem 1CQ

The piece of paper is accelerating at all point of the time during its motion.

Answer 13

Explanation of Solution

The rate of change of velocity is called acceleration. Acceleration is a vector quantity, which contains both magnitude and direction.

When a piece of paper is dropped the initial velocity of the paper is zero. This is because the paper starts from rest. As the paper falls the gravity acts on the paper and the paper gets accelerated. Due to the presence of air resistance, the downward motion of the paper is not smooth and it begins to flutter. Fluttering is also indicates acceleration of the paper. Thus, the velocity of the falling paper changes and hence the paper attains the acceleration.

Conclusion:

Therefore, the piece of paper is accelerating at all point of the time during its motion.