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Please help me on calculating Net Force, examples E and D in the attachment. Would be grateful if you'd explain. Thank you.

Please help me on calculating Net Force examples E and D in the attachment Would be grateful if youd explain Thank you class=

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JayDilla
The net force is force applied + force friction ( which is negative ) Unfortunately for some reason the numbers are negative, could you ask your teach about that?

Btw, left is usually force fric. which makes it negative

(-750+-250+-550)+1563 = net force

(-792+-632+-100)+(400+900) = net force

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