Physics, 05.05.2020 08:56, neymar6895
You are the technical consultant for an action-adventure film in which a stunt calls for the hero to drop off a 19-m-tall building and land on the ground safely at a final vertical speed of 5 m/s. At the edge of the building's roof, there is a 100-kg drum that is wound with a sufficiently long rope (of negligible mass), has a radius of 0.4 m, and is free to rotate about its cylindrical axis with a moment of inertia I0. The script calls for the 76-kg stuntman to tie the rope around his waist and walk off the roof. a) Determine an expression for the stuntman's linear acceleration in terms of his mass m, the drum's radius r, and moment of inertia I0.b) Determine the required value of the stuntman's acceleration if he is to land safely at a speed of 4.00 m/s, and use this value to calculate the moment of inertia of the drum about its axis. c) What is the angular acceleration of the drum?d) How many revolutions does the drum make during the fall?
Answers: 2
Physics, 22.06.2019 21:00, cathydaves
During a car accident, a 125kg driver is moving at 31m/s and in 1.5s is brought to rest by an inflating air bag. what is the magnitude of the change in momentum to the driver
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Physics, 22.06.2019 22:00, perezsamantha3oqr0za
Ahurricane sweeps across the ocean and damages the houses of people living along the coast. which of these does not play any role in this interaction? air water glaciers living things
Answers: 1
You are the technical consultant for an action-adventure film in which a stunt calls for the hero to...
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