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Uploaded: 20.03.2014
Content: 40320140550537.rar (9,15 kB)


1.68 On the railway platform moving by inertia with a speed the tool is strengthened. The mass of a platform with the t M=10 tool. The trunk of the tool is directed towards the movement of a platform. The shell the mass of m=10 of kg takes off from a trunk at an angle α = 60 ° to the horizon. Determine shell speed (concerning the earth) if after a shot the speed of a platform decreased in n =2 times.

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The solution of task T_1-68 is typed on the computer.


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