Answer:
F_{players} = 2528.4[N]
Explanation:
To solve this problem we must use Newton's second law, which tells us that the sum of forces on a body must be equal to the product of mass by acceleration.
On the sled act two forces, the force of friction and The Force executed by the football players.
The movement of the football players will be taken as positive, while the friction will be taken as negative, since it is opposed to the movement of the sled.
ΣF = m*a
where:
F = force [N]
m = mass [kg]
a = acceleration = 0.580 [m/s²]
[tex]F_{players} - f_{friction} = m*a[/tex]
The friction force is defected as the coefficient of friction by the normal force, the normal force on a horizontal surface can be calculated as the product of mass by gravitational acceleration.
[tex]f_{friction}=0.8*(300*9.81)\\f_{friction}=2354.4[N][/tex]
Now we can calculate the force exerted by the players.
[tex]F_{players}-2354.5=300*0.580\\F_{players}=2528.4[N][/tex]
