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The normal force on the block at the given inclined plane is 67.61 N.
The given parameters:
The normal force on object is the upward force on the object due to its weight acting downwards.
The normal force on the block is calculated as follows;
Fₙ = mgcosθ
Fₙ = Wcosθ
Fₙ = 70 x cos(15)
Fₙ = 67.61 N
Thus, the normal force on the block at the given inclined plane is 67.61 N.
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