A small groove is cut in a fixed 30° inclined surface. In plan view the groove has OA=4 m and OB=3 m as shown. A steel ball starts from rest at O and slides along the groove. Take g=10 m s⁻². Its speed at A is:

Physics · Newtons law of motion and Friction · newton second law and problem based on it

JEE MainsNEET

A small groove is cut in a fixed 30° inclined surface. In plan view the groove has OA=4 m and OB=3 m as shown. A steel ball starts from rest at O and slides along the groove. Take g=10 m s⁻². Its speed at A is:

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