What is the lumberjack''s speed relative to shore

Reference no: EM1310268

Q1. An astronaut on a small planet wishes to measure the local value of g by timing pulses travelling down a wire which has a large object suspended from it. Imagine the wire of mass 3.80 g is 1.60 m long and has a 3.00-kg object suspended from it. A pulse requires 43.6 ms to traverse the length of the wire. Calculate gplanet from these data. (You could neglect the mass of the wire when calculating the tension in it.)

Q2. A 75.00 kg lumberjack stands at one end of a 343 kg floating log. Both the log and the lumberjack are at rest initially. If lumberjack now trots toward the other end of the log with a speed of 2.7 m/s relative to the log, what is the lumberjack's speed relative to shore? Ignore friction between the log and the water.

Reference no: EM1310268

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