Question

please solve quickly​

Answer 1

Answer:

first find the area as F= ma

F= mv/ t

v= Ft/ m

Ft= 1/2×2×10+ 2×10+ 2×10+ 1/2×2×10+ 1/2×4×20

Ft= 10+ 20+ 20+10+40

Ft= 100

v= 100/2

v= 50

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