Answer :
Answer:
[tex] \: \: \: \: \boxed{ \boxed {\large\rm{108.7 \: N}}}[/tex]
Explanation:
The force required for the skier to move at a constant speed can be calculated by using the formula:
[tex] \sf \: \: F_k = \mu_k \times N [/tex]
where :
- [tex] \sf\mu_k[/tex] is coefficient of Kinetic friction
- N is normal Force
Normal force can be calculated by using the formula:
- N = mg
where :
- m is mass of the body
- g is gravitational constant (9.8 m/s²)
[tex] \sf N = 84.7 \times 9.8 [/tex]
[tex] \sf N = 830.06 \ N [/tex]
Now let's calculate the Force :
[tex] \sf F_k = \mu_k \times N [/tex]
[tex] \sf F_k = 0.131 \times 830.06 \ N[/tex]
[tex] \sf F_k = 108.7 \: N [/tex]
- Hence, the force required for the skier to move at a constant speed is 108.7 N .