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A playground slide is in the form of an arc of a circle that has a radius of 12 m. The maximum height of the slide ish = 3.8 m, and the ground is tangent to the circle (see the figure). A 18 kg child starts from rest at the top of the slide and has a speed of 6.4 m/s at the bottom. (a) What is the length of the slide? (b) What average frictional force acts on the child over this distance? If, instead of the ground, a vertical line

A playground slide is in the form of an arc of a circle that has a radius of 12 m. The maximum height of the slide ish = 3.8 m, and the ground is tangent to the circle (see the figure). A 18 kg child starts from rest at the top of the slide and has a speed of 6.4 m/s at the bottom. (a) What is the length of the slide? (b) What average frictional force acts on the child over this distance? If, instead of the ground, a vertical line

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A playground slide is in the form of an arc of a circle that has a radius of 12 m. The maximum height of the slide ish = 3.8 m, and the ground is tangent to the circle (see the figure). A 18 kg child starts from rest at the top of the slide and has a speed of 6.4 m/s at the bottom. (a) What is the length of the slide? (b) What average frictional force acts on the child over this distance? If, instead of the ground, a vertical line through the top of the slide is tangent to the circle, what are (c) the length of the slide and (d) the average frictional force on the child?
Transcribed Image Text:A playground slide is in the form of an arc of a circle that has a radius of 12 m. The maximum height of the slide ish = 3.8 m, and the ground is tangent to the circle (see the figure). A 18 kg child starts from rest at the top of the slide and has a speed of 6.4 m/s at the bottom. (a) What is the length of the slide? (b) What average frictional force acts on the child over this distance? If, instead of the ground, a vertical line through the top of the slide is tangent to the circle, what are (c) the length of the slide and (d) the average frictional force on the child?
Aplaveround slicle is in the formof an arc of a circle thathas a radius of 12 m. The maximum height of the slide is - 38 m, and the zround is tangent to the circle Isce the figurc). A 18 kg child starts from rest at the top of the slide and has a speed of 6.4 m's at the hottam. (a) What is th: length af the slide? (b) What awerngr frictional farce arts on the chil: aver this distancr? If inst:ad of the gruund, a verlical line through the lop of ihe slide is targent to the circle whal are (c) the lergthef the slide and (d) Lhe average frictional force on the child?
Transcribed Image Text:Aplaveround slicle is in the formof an arc of a circle thathas a radius of 12 m. The maximum height of the slide is - 38 m, and the zround is tangent to the circle Isce the figurc). A 18 kg child starts from rest at the top of the slide and has a speed of 6.4 m's at the hottam. (a) What is th: length af the slide? (b) What awerngr frictional farce arts on the chil: aver this distancr? If inst:ad of the gruund, a verlical line through the lop of ihe slide is targent to the circle whal are (c) the lergthef the slide and (d) Lhe average frictional force on the child?
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