m=2 кг Δt=4 с Δv=50 м/с F=?
===
F=m*a=m*Δv/Δt=2*50/4=25 H
==========================
X= 2+3t-t
тогда
4 H
2 H
-2 H
1H
-4 H
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m=2 кг Δt=4 с Δv=50 м/с F=?
===
F=m*a=m*Δv/Δt=2*50/4=25 H
==========================
Verified answer
X= 2+3t-t
тогда
4 H
2 H
-2 H
1H
-4 H