The force applied is 47.3 N
Explanation:
First of all, we start by calculating the acceleration of Hailey, which is given by
[tex]a=\frac{v-u}{t}[/tex]
where:
v = 3.5 m/s is the final velocity
u = 2 m/s is the initial velocity
t = 2 s is the time elapsed
Substituting, we find the acceleration:
[tex]a=\frac{3.5-2}{2}=0.75 m/s^2[/tex]
Now we can find the force applied by using Newton's second law:
[tex]F=ma[/tex]
where
F is the force applied
m = 63 kg is the mass of Hailey+the skate
[tex]a=0.75 m/s^2[/tex] is the acceleration
Substituting, we find the force:
[tex]F=(63)(0.75)=47.3 N[/tex]
Learn more about Newton's second law:
brainly.com/question/3820012
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