rachampt76
21.11.2019 •
Physics
Alyssa applied 1,860.2 j of work to move a piano 4.2 meters. what amount of force did the student use? f= w/d
a) 7812.84 n b) 7440 n
c)442.9 n d)465 n
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Ответ:
im sorry but the way your asking is a bit confusing. mind restating it? btw i love ur profile pic
Ответ:
7.06454224 Newtons
Explanation:
C = Drag coefficient = 0.8
ρ = Density of air = 1.204 kg/m³
A = Surface area = 1 m²
v = Velocity of wind = 7 min/mi = 3.83 m/s
The Drag force is given by
The drag force exerted on the runner is 7.06454224 Newtons