Observe the picture and answer that it is PUSH or PULL., PUSH, PULL, Observe the picture and answer that it is PUSH or PULL., PUSH, PULL, Observe the picture and answer that it is PUSH or PULL., PUSH, PULL, Observe the picture and answer that it is PUSH or PULL., PUSH, PULL, holding a pencil, friction is useful, friction is problem, walking, friction is useful, friction is problem, wear and tear of shoes ., friction is useful, friction is problem, tying shoelaces., friction is useful, friction is problem, A ----------------- is a PUSH or PULL., Force, Surface, walking, How much force showing in force meter?, 1N, 2N, 3N

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