Physics, 28.09.2019 00:30 joeylozier15
Alarge flat block of mass 7 m rests on a level, smooth tabletop (µk ≈ 0). on top of it is a much smaller block of mass m, with a coefficient of static friction between the two blocks of µs. if the small block is pulled horizontally with constant force f, we want both blocks to slide together across the table without slipping on each other.
what is the largest acceleration that the system can be given in terms of µs and g?
1. f − µs g/ 8
2. f /8 m
3. µs g /7
4. µs g
5. 7 µs g /8
6. 8 µs g
Answers: 1
Physics, 21.06.2019 22:20
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Physics, 22.06.2019 09:40
(a) assume the equation x = at^3 + bt describes the motion of a particular object, with x having the dimension of length and t having the dimension of time. determine the dimensions of the constants a and b. (use the following as necessary: l and t, where l is the unit of length and t is the unit of time.) (b) determine the dimensions of the derivative dx/dt = 3at^2 + b. (use the following as necessary: l and t, where l is the unit of length and t is the unit of time.)
Answers: 1
Alarge flat block of mass 7 m rests on a level, smooth tabletop (µk ≈ 0). on top of it is a much sma...
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