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a block sliding in a horizontal groove is Subjected to a vertical downwards force at 1,800N as shown in the diagram below. if the coefficient of friction for the contact surfaces to cause motion if the force is applied in a direction parallel to the groove. Find the force
A. Applied in a direction parallel to the groove
B. Upward at 30° to the groove
C. Downwards at 30° to the groove

a block sliding in a horizontal groove is Subjected to a vertical downwards force at 1800N as shown in the diagram below if the coefficient of friction for the class=

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