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A child runs and jumps into an)initially stationary) playground swing. The child is moving in 5.0...
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...
1. A 25 kg child runs at a speed of 5.0 m/s and jumps onto a stationary...
1. A 25 kg child runs at a speed of 5.0 m/s and jumps onto a stationary shopping cart and holds on for dear life. The cart has mass 12 kg. Assuming the child rides on the cart after the collision, find the speed of the child and shopping cart just after the child jumps on. Show all work please
A child swings on a playground swing attached to chains 6.00 m long. Assume the center...
A child swings on a playground swing attached to chains 6.00 m long. Assume the center of mass to be at the position of the seat. Calculate the period of the swing for small-amplitude oscillations
A 35.0-kg child swings in a swing supported by two ropes, each 3.40 m long. The...
A 35.0-kg child swings in a swing supported by two ropes, each 3.40 m long. The tension in each rope at the lowest point of the swing is 430 N. a) Find the child's speed at the lowest point of the swing. (ignore the mass of the seat.) b) Find the magnitude of the force exerted by the seat on the child at the lowest point of the swing.
A 40.0-kg child running at a speed 3.00 m/s jumps on astationary playground merry-go-round at...
A 40.0-kg child running at a speed 3.00 m/s jumps on a stationary playground merry-go-round at a distance 1.50 m from the axis of rotation of the merry-go-round. The child is traveling tangential to the edge of the merry-go-round which has a 600 kg.
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 40.0-kg child running at 3.00 m/s suddenly jumps onto a stationary playground merry-go-round at a...
A 40.0-kg child running at 3.00 m/s suddenly jumps onto a stationary playground merry-go-round at a distance 1.50 m from the axis of rotation of the merry-go-round. The child is traveling tangential to the edge of the merry-go-round just before jumping on. The moment of inertia about its axis of rotation is 600 kg ? m2 and very little friction at its rotation axis. What is the angular speed of the merry-go-round just after the child has jumped onto it?...
In the figure below, a 4.0 kg block is accelerated from rest by a compressed spring...
In the figure below, a 4.0 kg block is accelerated from rest by a compressed spring of spring constant 600 N/m. The block leaves the spring at the spring's relaxed length and then travels over a horizontal floor with a coefficient of kinetic friction uk= 0.30.The frictional force stops the block in the distance of D = 8.0 m. -- No friction a) Find the increase in the thermal energy of the block-floor system b) What is the original compression...
Please answer all parts a)A child of mass 35 kg is sitting on the seat of...
Please answer all parts
a)A child of mass 35 kg is sitting on the seat of a swing, suspended from a rigid bar on ropes that are 2.0 m long. Calculate the moment of inertia of the child with respect to the bar about which the swing rotates. b) Two very thin concentric circular hoops of mass 0.20 kg and 0.30 kg have radi of 1.5 m and 0.90 m respectively. They are connected by rigid links of negligible mass...
pls do #9 tension 7) A cord with a tension of 49 N pulls a mass...
pls do #9
tension 7) A cord with a tension of 49 N pulls a mass of 5.0 kg up a hill as shown. The coefficient of kinetic friction between the mass and the hill is 0.20. The tension force is parallel to the hill. If the mass moves 1.5 m along the hill, please determine the work done by the forces below. Work Space: Work Done Force Gravity Tension Friction Normal Energy (1) 8) A 0.055 kg mass moves...
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...
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...
In the figure below, a 4.0 kg block is accelerated from rest by a compressed spring of spring constant 600 N/m. The block leaves the spring at the spring's relaxed length and then travels over a horizontal floor with a coefficient of kinetic friction uk= 0.30.The frictional force stops the block in the distance of D = 8.0 m. -- No friction a) Find the increase in the thermal energy of the block-floor system b) What is the original compression...
Please answer all parts
a)A child of mass 35 kg is sitting on the seat of a swing, suspended from a rigid bar on ropes that are 2.0 m long. Calculate the moment of inertia of the child with respect to the bar about which the swing rotates. b) Two very thin concentric circular hoops of mass 0.20 kg and 0.30 kg have radi of 1.5 m and 0.90 m respectively. They are connected by rigid links of negligible mass...
pls do #9
tension 7) A cord with a tension of 49 N pulls a mass of 5.0 kg up a hill as shown. The coefficient of kinetic friction between the mass and the hill is 0.20. The tension force is parallel to the hill. If the mass moves 1.5 m along the hill, please determine the work done by the forces below. Work Space: Work Done Force Gravity Tension Friction Normal Energy (1) 8) A 0.055 kg mass moves...
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