The first Bungee cord jump was done on April 1. 1979 by four members of the Oxford University Dangerous Sports Club. They jumped from the 76m high Clifton Suspension Bridge in Bristol EnglandImagine that you are the person in charge of buying the right bungee cord. They used a 40 m cord that stretched an additional 35 m (so the person stopped 1 m above the ground). If the jumper's mass was 70 kg what is the k value of the cord you need to buy ?

Astone is dropped from the upper observation deck of a tower, 250 m above the ground. (assume g = 9.8 m/s2.) (a) find the distance (in meters) of the stone above ground level at time t. h(t) = (b) how long does it take the stone to reach the ground? (round your answer to two decimal places.) s (c) with what velocity does it strike the ground? (round your answer to one decimal place.) m/s (d) if the stone is thrown downward with a speed of 2 m/s, how long does it take to reach the ground? (round your answer to two decimal places.) s