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magnitudes of the 5.) A 10 Newton force and a 25 Newton force act concurrently on...
Newton's Laws of Motion 12. The diagram below shows a horizontal 8.0-newton force applied to a...
Newton's Laws of Motion 12. The diagram below shows a horizontal 8.0-newton force applied to a 4.0-kilogram block on a frictionless table. 4.0 kg F8.0 N Frictionless Table What is the magnitude of the block's acceleration? 13. Two forces are applied to a 2.0-kilogram block on a frictionless horizontal surface, as shown in the diagram below. F, -2.0 N F2-8.0 N 2.0 kg Frictionless Surface What is the acceleration of the block? What additional force, when applied to the object...
A pendulum, consisting of a ball of mass m on a light string of length 1.00...
A pendulum, consisting of a ball of mass m on a light
string of length 1.00 m, is swung back to a 45° angle and released
from rest. The ball swings down and, at its lowest point, collides
with a block of mass 2mthat is on a frictionless
horizontal surface.
Note that you will most likely get different numbers for the
different parts below. As usual, a good way to handle that is to
solve the problem using variables, and...
A 10 kg block is dragged by an applied force of 20N, which makes an angle...
A 10 kg block is dragged by an applied force of 20N, which makes an angle of 600 with the horizontal. The coefficient of friction of the surface is. The block starts from rest and is pulled a distance of 7m. Calculate the work done by the applied force? Calculate the work done by the force of friction? What is the resultant work done? What is the final velocity of the block? Recall: work done equals change in kinetic...
on a frictionless table collides with a stationary 7. A 10 kg ball moving at a...
on a frictionless table collides with a stationary 7. A 10 kg ball moving at a velocity of 2 m/s 5 kg ball. Find the final velocity of each ball if the collision is inelastic? If the collision is elastic and the 10 kg ball comes to a complete stop, what is the final velocity of the second ball? 8. A woman stands at the center of a platform. She is holding a dumb-bell in each hand, and outstretched. The...
5. A ball is attached to one end of a wire, the other end being fastened...
5. A ball is attached to one end of a wire, the other end being fastened to the ceiling. The wire is held horizontal, and the ball is released from rest (see the drawing). It swings downward and strikes a block Initially at rest on a horizontal frictionless surface. Air resistance is negligible, and the collision is inelastic. The masses of the ball and block are, respectively, 1.5 kg and 2.4 kg, and the length of the wire is 1.21...
Collision Problem Elastic and Inelastic: Two carts are on a frictionless surface as depicted below. 5...
Collision Problem Elastic and Inelastic: Two carts are on a frictionless surface as depicted below. 5 m/s 20 kg 10 kg Frictionless surface Part 1. What is the common velocity just after impact if the two stick together, an inelastic collision? Give your answer to 3 significant digits. m/s Part 2. How much Kinetic energy is lost? Give your answer to 3 significant digits. J Part 3. If instead the collision is elastic, what is the velocity of the 10...
A racquet ball with mass m = 0.252 kg is moving toward the wall at v...
A racquet ball with mass m = 0.252 kg is moving toward the wall
at v = 18.2 m/s and at an angle of θ = 25° with respect to the
horizontal. The ball makes a perfectly elastic collision with the
solid, frictionless wall and rebounds at the same angle with
respect to the horizontal. The ball is in contact with the wall for
t = 0.06 s.
1)
What is the magnitude of the initial momentum of the racquet...
Question 4 A 0.5 kg block slides on a frictionless surface onto a cart that has...
Question 4 A 0.5 kg block slides on a frictionless surface onto a cart that has a rough surface. After sliding on the rough surface (uk = 0.30) of the cart over some distance, the block and the cart will come to the same speed of 0.4 m/s. The cart rolls frictionlessly. 0.5 kg 2 kg 0.4 m/s a. Is this a collision? If so, what kind of collision is it? b. What is the initial speed of the block...
A horizontal force of 99 N pushes a 11 kg block up a frictionless incline that...
A horizontal force of 99 N pushes a 11 kg block up a frictionless incline that makes an angle of 41° with the horizontal. (a) What is the normal force that the incline exerts on the block? =N (b) What is the acceleration of the block? (Hint: assume up the block as the positive direction.) =m/s2
rack of mass 1500 kg moving at 30 m/s is braked suddenly wit 1000-V. How far...
rack of mass 1500 kg moving at 30 m/s is braked suddenly wit 1000-V. How far does the car travel before stopping? th a constant braking force of 10. A baseball batter hits an incoming 45 m/s fastball. The ball leaves the bat at 55 m/s after a ball-on-bat contact time of 0.025 s. What is the force exerted on a 0.15-kg baseball? (choose + direction) 11. A trapeze artist, with swing, weighs 800 N; he is momentarily held horizontal...
Newton's Laws of Motion 12. The diagram below shows a horizontal 8.0-newton force applied to a 4.0-kilogram block on a frictionless table. 4.0 kg F8.0 N Frictionless Table What is the magnitude of the block's acceleration? 13. Two forces are applied to a 2.0-kilogram block on a frictionless horizontal surface, as shown in the diagram below. F, -2.0 N F2-8.0 N 2.0 kg Frictionless Surface What is the acceleration of the block? What additional force, when applied to the object...
A pendulum, consisting of a ball of mass m on a light
string of length 1.00 m, is swung back to a 45° angle and released
from rest. The ball swings down and, at its lowest point, collides
with a block of mass 2mthat is on a frictionless
horizontal surface.
Note that you will most likely get different numbers for the
different parts below. As usual, a good way to handle that is to
solve the problem using variables, and...
on a frictionless table collides with a stationary 7. A 10 kg ball moving at a velocity of 2 m/s 5 kg ball. Find the final velocity of each ball if the collision is inelastic? If the collision is elastic and the 10 kg ball comes to a complete stop, what is the final velocity of the second ball? 8. A woman stands at the center of a platform. She is holding a dumb-bell in each hand, and outstretched. The...
5. A ball is attached to one end of a wire, the other end being fastened to the ceiling. The wire is held horizontal, and the ball is released from rest (see the drawing). It swings downward and strikes a block Initially at rest on a horizontal frictionless surface. Air resistance is negligible, and the collision is inelastic. The masses of the ball and block are, respectively, 1.5 kg and 2.4 kg, and the length of the wire is 1.21...
Collision Problem Elastic and Inelastic: Two carts are on a frictionless surface as depicted below. 5 m/s 20 kg 10 kg Frictionless surface Part 1. What is the common velocity just after impact if the two stick together, an inelastic collision? Give your answer to 3 significant digits. m/s Part 2. How much Kinetic energy is lost? Give your answer to 3 significant digits. J Part 3. If instead the collision is elastic, what is the velocity of the 10...
A racquet ball with mass m = 0.252 kg is moving toward the wall
at v = 18.2 m/s and at an angle of θ = 25° with respect to the
horizontal. The ball makes a perfectly elastic collision with the
solid, frictionless wall and rebounds at the same angle with
respect to the horizontal. The ball is in contact with the wall for
t = 0.06 s.
1)
What is the magnitude of the initial momentum of the racquet...
Question 4 A 0.5 kg block slides on a frictionless surface onto a cart that has a rough surface. After sliding on the rough surface (uk = 0.30) of the cart over some distance, the block and the cart will come to the same speed of 0.4 m/s. The cart rolls frictionlessly. 0.5 kg 2 kg 0.4 m/s a. Is this a collision? If so, what kind of collision is it? b. What is the initial speed of the block...
rack of mass 1500 kg moving at 30 m/s is braked suddenly wit 1000-V. How far does the car travel before stopping? th a constant braking force of 10. A baseball batter hits an incoming 45 m/s fastball. The ball leaves the bat at 55 m/s after a ball-on-bat contact time of 0.025 s. What is the force exerted on a 0.15-kg baseball? (choose + direction) 11. A trapeze artist, with swing, weighs 800 N; he is momentarily held horizontal...
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