physics
posted by Anonymous .
A 800. kg car starts from rest and accelerates uniformly to 19.0 m/s in 22.0 s. Assume that air resistance remains constant at 340 N during this time. Find (b) the average power developed by the engine

v=v₀+a•t => a=(vv₀)/t
m•a=FF(resist),
F= m•a+F(resist)=
=m• (vv₀)/t + F(resist)=
=800•(220)/22 +340 =…
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