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A 100 kg bag of wheat is placed on a pla...

A 100 kg bag of wheat is placed on a plank of wood. What is the weight of the beg and what is the reaction force exerted by the plank?

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Data : `m=100kg, g=9.8m//s^(2)`,
W = ? =, reaction force = ?
Magnitude of the weight,
`W=mg=100kgxx9.8m//s^(2)=980N`
The weight of the bag = 980 N acting downward.
The reaction force exerted by the plank on the bag = 980 N acting upward.
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