In an atwood machine, the force due to tension on the block going downwards will be in the direction.

downwards

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upwards

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horizontal

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Solution

The correct option is B upwards
Tension force is the force exerted due to strings on a load or vice-versa. A tension force is always a pull force as it acts away from the body.

In atwood machine, the force due to tension acts in the upward direction for both the blocks. Without tension, they would simply be in free-fall.

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