A Bungee jumper of mass m plans to drop starting at rest from a cliff of height H over a river, just coming to rest gently at the river's surface before being pulled back up. The key to a successful experience is to match the Bungee cord's unstretched length L (< H) and force constant k to the jumper's mass m and the jump height H. An additional constraint is that the jumper's upward acceleration during the jump be no greater than some specified maximum value amax. Required:
Derive algebraic expressions for the Bungee cord's appropriate unstretched length L and force constant k in terms of H.

Which is the best for showing percentages of different types of cars sold(gas hybrid , electric , other ) in the united states ?

Asilver dollar is dropped from the top of a building that is 1324 feet tall. use the position function below for free-falling objects. s(t) = −16t2 + v0t + s0 (a) determine the position and velocity functions for the coin. s(t) = v(t) = (b) determine the average velocity on the interval [1, 2]. ft/s (c) find the instantaneous velocities when t = 1 second and t = 2 seconds. v(1) = ft/s v(2) = ft/s (d) find the time required for the coin to reach the ground level. (round your answer to three decimal places.) t = s (e) find the velocity of the coin at impact. (round your answer to three decimal places.) ft/s

Which of the following is not a means to accelerating? question 4 options: a)increase speed b)remain still c)decrease speed d)change direction