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An unbalanced force changes velocity - Online practice 3
Read the information, then answer the questions. An adult may read the instructions aloud. Show your working where asked.
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One-dimensional force model: mass 3 kg, rightward force 15 N and leftward force 6 N. Other forces balance. Choose right as positive and use resultant F=ma for constant mass. Initial velocity is not supplied; a force result alone cannot determine it.
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