Question

Problems 7-11 Information: A child slides down a spiral slide of height h = 6π m with position ?⃗ = ? ?̂? + (ℎ − ?)?̂ m, where θ(t) = 2t rad and r(t) = 1 + θ/3 m. The child begins sliding from the top at t = 0 s. At the bottom of the slide:

Problem 7 How long (in seconds) does it take the child to reach the bottom of the slide?

Problem 8 What is the child’s velocity (m/s) in cylindrical coordinates

Problem 9 What is the child’s speed (m/s)?

Problem 10 What is the child’s acceleration (m/s2 ) in cylindrical coordinates?

Problem 11 What is the magnitude of the child’s acceleration (m/s2 )?

Answer 1