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please please please please please solve the above question I know there is too much question but then also please help me. ​

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the international system of UNIT (SI) is widely used for trade ,science and engineering .the SI unit of force is the newton ,symbol N .the base units relevant to force are -the METRE ,unit of length symbol m , the kilogram,unit of MASS symbol kg

15 .fill in the BLANKS a) equal and opposite force

b)VELOCITY and kg -ms



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