- #51

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I think the top part of the string should be

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- #51

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I think the top part of the string should be

- #52

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That cannot be string, or the pulley would fall down. Must be a rod.I think the top part of the string should beView attachment 81886

The upper part of the string runs drom the wall to the pulley. How much longer does that get when the car advances 1m?

- #53

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Same as distance covered by small block.How much longer does that get when the car advances 1m?

- #54

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No. Forget the block for the moment, and concentrate on the car, the pulley, the wall, and the length of string from wall to pulley. If the car moves 1m further from the pulley, how much longer is that part of the string?Same as distance covered by small block.

- #55

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Total length of string - length of the top part of the string ?How much longer does that get when the car advances 1m?

- #56

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No, I'm asking about that top part of the string, the part that runs horizontally from the wall to the pulley.Total length of string - length of the top part of the string ?

- #57

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Total length of string -(minus) length of the top part of the string .Right?/QUOTE]

- #58

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Thank you for your patience .

- #59

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- #60

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1 meter?

- #61

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Right. So what would be the change in length of the lower part of the string, the part that runs from the block to the pulley?1 meter?

- #62

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1 meter .So what would be the change in length of the lower part of the string

- #63

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Longer or shorter?1 meter .

- #64

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Shorter?Longer or shorter?

- #65

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Right. So how much closer is the block to the pulley?Shorter?

- #66

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1 meter.so distance covered by block is 1 meter,right?So how much closer is the block to the pulley?

- #67

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It is one metre closer to the pulley. But the pulley has moved how far?1 meter.so distance covered by block is 1 meter,right?

- #68

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1 meter?But the pulley has moved how far?

- #69

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Right. So the pulley is one metre further from the wall, and the block is one metre closer to the pulley. So how far has the block moved away from the wall?1 meter?

- #70

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1 meter.So how far has the block moved away from the wall?

- #71

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Right. So how much closer is the block to the pulley?

It is one metre closer to the pulley. But the pulley has moved how far?

By all these questions do you want to say that distance covered by car=distance covered by blockRight. So the pulley is one metre further from the wall, and the block is one metre closer to the pulley. So how far has the block moved away from the wall?

- #72

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try again. You have one more attempt leftSo the pulley is one metre further from the wall, and the block is one metre closer to the pulley. So how far has the block moved away from the wall?

- #73

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Is my post #70 correct?

- #74

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