Answer:
[tex]1.7\cdot 10^3 N[/tex]
Explanation:
The impulse theorem states that the product between the force and the time interval of the collision is equal to the change in momentum:
[tex]F \Delta t = m \Delta v[/tex]
where
F is the force
[tex]\Delta t[/tex] is the time interval
m is the mass
[tex]\Delta v[/tex] is the change in velocity
Here we have
m = 84 kg
[tex]\Delta t = 1.2 s[/tex]
[tex]\Delta v = 24 m/s[/tex]
So we can solve the equation to find the force:
[tex]F= \frac{m \Delta v}{\Delta t }=\frac{(84 kg)(24 m/s)}{1.2 s}=1680 N \sim 1.7\cdot 10^3 N[/tex]
