| JKU11 |
Verfasst am: 05. Nov 2011 23:10 Titel: Seilrolle |
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Meine Frage:
Two objects, of masses m1and m2 are connected by a string of negligible mass
that passes over a pulley (dt.: Seilrolle) with frictionless bearings (dt.: Lager).
The pulley is a massless disk (m = 0) with radius r. The string does not slip
on the pulley.
(a) Find the accelerations a1 and a2 of the masses m1 and m2.
(b) What are the the values of a1 and a2 asuming that m1 = 500 g and m2 =
510 g?
(b) What is the tension ~T1 in the string (Zugkraft im Seil) between m1and the
pulley?
(c) What is the tension ~T2 in the string between m2 and the pulley? Compare
it to ~T1!
Meine Ideen:
Also meine Grundidee für a) wäre:
angenommen: F1 die Kraft mit Masse 0.5kg und F2 Masse mit 0.51kg
F1: m1.g = 5N, F2: m2.g = 5,1N
somit Fres: 0,2N
F = m.a ... a = F/m = 0,099m/s2 |
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