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Question
A body is sliding down an inclined plane as shown below. Which of the following options represents the correct free body diagram at a particular moment?
A body is sliding down an inclined plane as shown below. Which of the following options represents the correct free body diagram at a particular moment?
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Solution
The correct option is B
- A body with mass M is sliding down on the inclined plane. As the body is moving down, friction will act in the opposite direction on the body.
- Gravitational force or body weight is always oriented towards the centre of the earth. Hence we can draw downward force Mg as shown below.
- We know that normal force is always acting perpendicular to the surface on which the body is rested.
Therefore, this is the correct free body diagram for the body moving on an inclined plane for the given instant.
- A body with mass M is sliding down on the inclined plane. As the body is moving down, friction will act in the opposite direction on the body.
- Gravitational force or body weight is always oriented towards the centre of the earth. Hence we can draw downward force Mg as shown below.
- We know that normal force is always acting perpendicular to the surface on which the body is rested.
Therefore, this is the correct free body diagram for the body moving on an inclined plane for the given instant.
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