A `5 - kg` block sides down a plane inclined at `30^(@)` to the horizontal. Find (a) The acceleration of the block if the plase is frictionless b. The acceleration if the coefficient of kinetic friction is `1//2sqrt(3)`
Text Solution
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a. `mg sin 30^(@) = ma` `a = g sin 30^(@)= 5 ms^(-2)` down the plane if plane is smooth M b.`mg sin 30^(@) - mu_(k)N = ma` `a = g sin 30^(@ )- mu_(k)g cos 30^(@) = 5//2 ms^(-2)`
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CENGAGE PHYSICS-NEWTON'S LAWS OF MOTION 2-Integer type
