Answer:
c)[tex]F_{net} = 0.640 kN[/tex]
Explanation:
As we know that resultant force is the net force that is acting on the system
As per Newton's II law we know that net force is product of mass and acceleration
so we will have
[tex]F_{net} = ma[/tex]
here we know
m = 80 kg
for circular motion acceleration is given as
[tex]a_c = \frac{v^2}{R}[/tex]
[tex]a_c = \frac{40^2}{200} = 8 m/s^2[/tex]
now we have
[tex]F_{net} = 80 \times 8[/tex]
[tex]F_{net} = 640 N[/tex]
[tex]F_{net} = 0.640 kN[/tex]
