Acceleration and velocity
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Acceleration and velocity

[From: ] [author: ] [Date: 11-06-13] [Hit: ]
Force on sloped block = 8kg*g - 2.5kg*g = 5.5.0.423g=x = 4.d=.......
Two blocks are connected by a light string with one block of 5kg mass sitting on a frictionless 30degree incline plane and the second block of 8kg mass hangs from the string which runs over a frictionless light pulley.
A) Find the acceleration of the block on the plane.
B) Find its velocity after traveling 2m along the plane from rest.

-
Sin(30)*5kg*9.8 = 2.5kg*g (gravity of sloped block in direction of travel)
Force on sloped block = 8kg*g - 2.5kg*g = 5.5kg*g (net force on the system)
F=ma (mass of both blocks because we want the acceleration of the system)
5.5g=13*x
0.423g=x = 4.15ms-2
b)
d=.5at^2 ... t= .98 ... at=v
v = 4.07
1
keywords: velocity,and,Acceleration,Acceleration and velocity
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