Parallelogram of Force App. Wall Type PSAW |
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| Parallelogram of Force App. Wall Type PSAW
(1177 ) |
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For demonstrating the principles of parallelogram. The apparatus comprises a strong drawing board 45x30cm fitted with two hooks for fixing to a wall. The whole board is painted black. It is supplied with two nos. z-pulleys and 3 sets of iron c.P. slotted weights (SOx 5gm), but without cords.
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