Question

do this question for 3​

Answer 1

Answer:

I have solved a lot of questions like this but this question is incomplete.

Step-by-step explanation:

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Answer 2

Answer:

for such graphs. when the force direction is along the displacement axis total work done is the area under the graph

we need work done between x=1 to x=5

area under the graph

(W):10×(2-1+5-4) +20×(3-2)-20×(4-3)= 20 erg

final answer= 20 erg(cgs unit)