The 10kg block in the figure slides down a frictionless ramp.?
The 10 kg block shown in Figure 1 slides down a frictionless ramp. What is its acceleration? You can view the picture here: http://s1272.beta.photobucket.com/user/kurtcopain/...
1 Answers
The 10 kg's weight , 98.1N, has two components.
The component down the plane is given by Sin 40° = x / 98.1
x = 98.1 Sin 40° = 63.06NThe 5kg mass is creating an opposing force, up the plane, of 5 x 9.81 = 49.05N
Therefore, the resultant force down the plane is 63.06 - 49.05 = 14.01N
Using F = ma and remembering the 5 kg is being pulled up too, 14.01= 15aAcceleration = 14.01 /15 = 0.934 m/s^2
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