a.
An airplane has a mass of 3.79 × 104 kg and takes off under the influence of a constant net force of 3.45 × 104 N. What is the net force that acts on the plane's 82.7-kg pilot?
Number = ______ N
b.
A person in a kayak starts paddling, and it accelerates from 0 to 0.527 m/s in a distance of 0.452 m. If the combined mass of the person and the kayak is 64.4 kg, what is the magnitude of the net force acting on the kayak?
Number = _____ N
Part b)
We know, vf^2 =v0^2 + 2aΔx
Where, final velocity (vf) = .527 m/s
inital velocity (v0) = 0
Δx = .452 m
Now, lets find acceleration , a
.527^2=0^2+2*a*0.452
A=0.307 m/s^2
We also know,
F = ma
64.4 kg * .307 m/s^2 = 19.78 N (Ans)
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