A block of mass 1 kg is sliding down an inclined surface as shown below. What is the direction of gravitational force acting on it due to Earth?
A
Down the slope
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B
Up the slope
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C
Vertically upwards
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D
Vertically downwards
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Solution
The correct option is D
Vertically downwards
Earth pulls any object having mass towards its centre. This force is known as gravitational force and acts in a vertically downward direction near the suurface of earth. Here, although the block is sliding along the inclined plane, the direction of gravitational force is vertically downwards.