As a ball falls to the ground, it accelerates continuously and, therefore, increases its momentum. Why...
As a ball falls to the ground, it accelerates continuously and, therefore, increases its momentum. Why is not this a violation of the law of conservation of the linear moment?
Homework Answers
Law of conservation of momentum is conserved applicable only when the net force acting is zero .however in this case gravity weight is acting constantly so rate of change of momentum is equal to force acting .so this is not a conservation of momentum
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As a ball falls to the ground, it accelerates continuously and,
therefore, increases its momentum. Why...
9. While a ball falls to the ground, it accelerates continuously and so increases its momentum....
9. While a ball falls to the ground, it accelerates continuously and so increases its momentum. Why is not this a violation of the law of conservation of the linear moment?
If we examine a steel ball bearing falling through a vertical distance of a few feet...
If we examine a steel ball bearing falling through a vertical distance of a few feet (a situation in which the effects of air resistance on the motion of the object can be ignored), we find that the kinetic energy of the ball bearing is increasing. This is not a violation of the law of conservation of energy because the: The gravitational potential energy of the ball decreases as it falls. The gravitational potential energy of the ball increases as...
Physics help A ball falls straight down in the xy plane. Its momentum is shown by...
Physics help
A ball falls straight down in the xy plane. Its momentum is shown by the red arrow. What is the ball's z component of angular momentum about location A?
In applying the conservation of momentum to the collision between a ball and a pendulum, why...
In applying the conservation of momentum to the collision between a ball and a pendulum, why is it valid to ignore the external gravitational force on both objects?
Moment of Inertia/Conservation of Angular Momentum 10) Consider a cat in free-fall, as shown above (assume...
Moment of Inertia/Conservation of Angular Momentum 10) Consider a cat in free-fall, as shown above (assume no external torques act upon it). As it falls, the cat has an initial angular velocity of: o 1.6 rad/s, and an initial moment of inertia of: In=7.5x 10 kgm. If the cat extends its legs so that its moment of inertia increases to I nal12.0x10 kgm, what would be the cat's final angular velocity?
A ball is thrown vertically upwards with an initial velocity of 18.80 m/s, from the ground....
A ball is thrown vertically upwards with an initial velocity of 18.80 m/s, from the ground. How long is the ball in the air? (Neglect air resistance.) What is the greatest height reached by the ball? Calculate the time at which the ascending ball reaches a height of 12.8 m above the ground. A rocket, initially at rest on the ground, accelerates straight upward with a constant acceleration of 53.0 m/s^2, until the fuel is used up after 6.80s. What...
need answers for 5, 6,8-10 C) doubled speed v of the wheel center speed. 4. If...
need answers for 5, 6,8-10
C) doubled speed v of the wheel center speed. 4. If we push the handle at points A, B and to open the door (with equal forces), and point A at the edge, point C close to the door shaft, and point B at middle, you use the minimum force at point WA B) B C) с 5. (continued with Question 4) No matter how you push the door (different force, different Question 4 rotation...
A bowling ball of mass 1.5kg and radius 0.3m rolls with linear speed 2.5m/s along the...
A bowling ball of mass 1.5kg and radius 0.3m rolls with linear speed 2.5m/s along the ground toward a small incline. Assume rolling without slipping! 1.1) What is the moment of inertia of the bowling ball? 1.2) What is the total kinetic energy of the bowling ball? 2.3) If the bowling ball encounters a hill, to what height can it roll up the hill before stopping? (use conservation of energy) 2.4) Will a solid cylinder with the same mass and...
1) As a raindrop falls through the atmosphere, its speed initially changes as it falls toward...
1) As a raindrop falls through the atmosphere, its speed initially changes as it falls toward the Earth. Before the raindrop reaches its terminal speed, the magnitude of its acceleration A. increases B. decreases C. stays constant at zero D. stays constant at 9.8 m/s? E. stays constant at a value not equal to zero nor 9.8 m/s2 The position vector of a particle is given by r(t) = 2tî + 3t2ġ where ř is measured in metres and t...
*Problem 2.35 A ball is kicked from a location 9, Ο 4> m on the ground...
*Problem 2.35 A ball is kicked from a location 9, Ο 4> m on the ground with initial velocityく10 13 0 (a) What is the velocity of the ball 0.2 s after being kicked? (Use the Momentum Principle!) 6> m/s. The ball's speed is low enough that air resistance is negligible. m/s (b) In this situation (constant force), which velocity will give the most accurate value for the location of the ball 0.2 s after it is kicked? C C...
If we examine a steel ball bearing falling through a vertical distance of a few feet (a situation in which the effects of air resistance on the motion of the object can be ignored), we find that the kinetic energy of the ball bearing is increasing. This is not a violation of the law of conservation of energy because the: The gravitational potential energy of the ball decreases as it falls. The gravitational potential energy of the ball increases as...
Physics help
A ball falls straight down in the xy plane. Its momentum is shown by the red arrow. What is the ball's z component of angular momentum about location A?
Moment of Inertia/Conservation of Angular Momentum 10) Consider a cat in free-fall, as shown above (assume no external torques act upon it). As it falls, the cat has an initial angular velocity of: o 1.6 rad/s, and an initial moment of inertia of: In=7.5x 10 kgm. If the cat extends its legs so that its moment of inertia increases to I nal12.0x10 kgm, what would be the cat's final angular velocity?
A ball is thrown vertically upwards with an initial velocity of 18.80 m/s, from the ground. How long is the ball in the air? (Neglect air resistance.) What is the greatest height reached by the ball? Calculate the time at which the ascending ball reaches a height of 12.8 m above the ground. A rocket, initially at rest on the ground, accelerates straight upward with a constant acceleration of 53.0 m/s^2, until the fuel is used up after 6.80s. What...
need answers for 5, 6,8-10
C) doubled speed v of the wheel center speed. 4. If we push the handle at points A, B and to open the door (with equal forces), and point A at the edge, point C close to the door shaft, and point B at middle, you use the minimum force at point WA B) B C) с 5. (continued with Question 4) No matter how you push the door (different force, different Question 4 rotation...
1) As a raindrop falls through the atmosphere, its speed initially changes as it falls toward the Earth. Before the raindrop reaches its terminal speed, the magnitude of its acceleration A. increases B. decreases C. stays constant at zero D. stays constant at 9.8 m/s? E. stays constant at a value not equal to zero nor 9.8 m/s2 The position vector of a particle is given by r(t) = 2tî + 3t2ġ where ř is measured in metres and t...
*Problem 2.35 A ball is kicked from a location 9, Ο 4> m on the ground with initial velocityく10 13 0 (a) What is the velocity of the ball 0.2 s after being kicked? (Use the Momentum Principle!) 6> m/s. The ball's speed is low enough that air resistance is negligible. m/s (b) In this situation (constant force), which velocity will give the most accurate value for the location of the ball 0.2 s after it is kicked? C C...
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