The length of nylon rope from which a mountain climber is suspended has a force constant of 1.40×10^{4} 4 n/m . (a) what is the frequency at which he bounces, given his mass plus and the mass of his equipment are 90.0 kg? (b) how much would this rope stretch to break the climber's fall if he free- falls 2.00 m before the rope runs out of slack? hint: use conservation of energy.

You have two photos of a person walking. one shows the person at the corner of third and main streets, the other shows the person at the corner of tenth and main streets. there are lampposts at every corner in this town, and the first picture shows it to be 10: 32: 00 exactly. the second picture shows it to be 10: 49: 30. you know three facts: (1) all of the clocks are synchronized; (2) there are exactly 12 equal-sized blocks per kilometer in this town; and (3) the streets that cross main in this area are numbered consecutively, with no interruptions. what is the person’s average speed in kilometers per hour?