At time t-0, a massive block is given an initial speed v = 35 m/s up along an infinitely long inclined plane which makes a constant angle 0 = 30° with the horizontal ground; see the figure. (The inclined plane is fixed to the ground.) The friction coefficient (both static and kinetic) between the surfaces of the block and the inclined plane is µ = 1/(6/3). The block moves up along the inclined plane first, stops and then moves down. At time t=D12 s, how far is the block from its initial position? (sin 30° = 1/2, therefore cos 30° = V3/2) Take g = 10 m/s2. 1--- ---- O 10 m O 15 m O 20 m O 25 m O 30 m
At time t-0, a massive block is given an initial speed v = 35 m/s up along an infinitely long inclined plane which makes a constant angle 0 = 30° with the horizontal ground; see the figure. (The inclined plane is fixed to the ground.) The friction coefficient (both static and kinetic) between the surfaces of the block and the inclined plane is µ = 1/(6/3). The block moves up along the inclined plane first, stops and then moves down. At time t=D12 s, how far is the block from its initial position? (sin 30° = 1/2, therefore cos 30° = V3/2) Take g = 10 m/s2. 1--- ---- O 10 m O 15 m O 20 m O 25 m O 30 m
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