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A 32.0 kg child is in a swing that...
7.9 A 380-N child is in a swing that is attached to a pair of ropes...
7.9 A 380-N child is in a swing that is attached to a pair of ropes 2.10 m long. Find the gravitational potential energy of the child–Earth system relative to the child's lowest position at the following times. (a) when the ropes are horizontal J (b) when the ropes make a 28.0° angle with the vertical J (c) when the child is at the bottom of the circular arc J
A child with a weight of 170 N swings on a playground swing attached to 2.00...
A child with a weight of 170 N swings on a playground swing attached to 2.00 m long chains. What is the gravitational potential energy (in J) of the child-earth system relative to the child's lowest position at the following times? (a) when the chains are horizontal ________ J (b) when the chains make an angle of 32.0° with respect to the vertical ________ J (c) when the child is at his lowest position ________ J
A child with a weight of 200 N swings on a playground swing attached to 2.00-m-long...
A child with a weight of 200 N swings on a playground swing attached to 2.00-m-long chains. What is the gravitational potential energy of the child- Earth system relative to the child's lowest position at the following times? (a) when the chains are horizontal j (b) when the chains make an angle of 30.0° with respect to the vertical J (c) when the child is at his lowest position A pendulum bob with a mass of 0.370 kg is attached...
3. A 40.0 kg child is in a swing that is attached to ropes 2.00 m...
3. A 40.0 kg child is in a swing that is attached to ropes 2.00 m long. Find the gravitational potential energy associated with the child relative to the chid s lowest position under the following conditions: a. when the ropes are horizontal b. when the ropes make a 30.0° angle with the vertical c. at the bottom of the circular arc SECTION 2 FORMATIVE ASSESSMENT O Reviewing Main Ideas 1. A pinball bangs against a bumper, giving the ball...
A 20.0 kg child plays on a swing having support ropes that are 2.30 m long....
A 20.0 kg child plays on a swing having support ropes that are 2.30 m long. A friend pulls her back until the ropes are 39.0 degrees from the vertical and releases her from rest. What is the potential energy for the child just as she is released, compared with the potential energy at the bottom of the swing? How fast will she be moving at the bottom of the swing? How much work does the tension in the ropes...
Problem 1 [10 pts] A 20.0 kg child plays on a swing having support ropes that...
Problem 1 [10 pts] A 20.0 kg child plays on a swing having support ropes that are 2.0 m long. A friend pulls her back until the ropes are 45.0° from the vertical and releases her from rest. a) What is the potential energy for the child just as she is released, compared with the potential energy at the bottom of the swing? b) How fast will she be moving at the bottom of the swing? c) How much work...
A 22.0 kg child plays on a swing having support ropes that are 2.40 m long....
A 22.0 kg child plays on a swing having support ropes that are 2.40 m long. A friend pulls her back until the ropes are 45.0 ∘ from the vertical and releases her from rest. A. What is the potential energy for the child just as she is released, compared with the potential energy at the bottom of the swing? B. How fast will she be moving at the bottom of the swing? C. How much work does the tension...
on 41. A 25 kg child plays on a swing having support ropes that are 2.2...
on 41. A 25 kg child plays on a swing having support ropes that are 2.2 m long. A friend pull back until the ropes are 42 degrees from the vertical and releases her from rest. (a) What is the potential energy of the child just as she is released, compared with the potential energy at the bottom of the swing? (b) how fast will she be moving at the bottom of the swing? (c) how much work does the...
A 21.0 kg child plays on a swing having support ropes that are 2.40 m long....
A 21.0 kg child plays on a swing having support ropes that are 2.40 m long. A friend pulls her back until the ropes are 45.0 ∘ from the vertical and releases her from rest. A) What is the potential energy for the child just as she is released, compared with the potential energy at the bottom of the swing? B) How fast will she be moving at the bottom of the swing? C) How much work does the tension...
Please do not choose any choice without showing the proper solutions of all questions. Q1. (a)...
Please do not choose any choice without showing the proper solutions of all questions. Q1. (a) 3 A block of mass 2.50 kg is pushed 2.20 m along a frictionless horizontal table by a constant 16.0-N force directed 25.0° below the horizontal. Determine the work done on the block by (a) the applied force, (b) the normal force exerted by the table, and (c) the gravitational force. (d) Determine the net work done on the block. Q 1. (b) 3...
A child with a weight of 200 N swings on a playground swing attached to 2.00-m-long chains. What is the gravitational potential energy of the child- Earth system relative to the child's lowest position at the following times? (a) when the chains are horizontal j (b) when the chains make an angle of 30.0° with respect to the vertical J (c) when the child is at his lowest position A pendulum bob with a mass of 0.370 kg is attached...
3. A 40.0 kg child is in a swing that is attached to ropes 2.00 m long. Find the gravitational potential energy associated with the child relative to the chid s lowest position under the following conditions: a. when the ropes are horizontal b. when the ropes make a 30.0° angle with the vertical c. at the bottom of the circular arc SECTION 2 FORMATIVE ASSESSMENT O Reviewing Main Ideas 1. A pinball bangs against a bumper, giving the ball...
on 41. A 25 kg child plays on a swing having support ropes that are 2.2 m long. A friend pull back until the ropes are 42 degrees from the vertical and releases her from rest. (a) What is the potential energy of the child just as she is released, compared with the potential energy at the bottom of the swing? (b) how fast will she be moving at the bottom of the swing? (c) how much work does the...
Please do not choose any choice without showing the proper solutions of all questions. Q1. (a) 3 A block of mass 2.50 kg is pushed 2.20 m along a frictionless horizontal table by a constant 16.0-N force directed 25.0° below the horizontal. Determine the work done on the block by (a) the applied force, (b) the normal force exerted by the table, and (c) the gravitational force. (d) Determine the net work done on the block. Q 1. (b) 3...
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