Question

A football player at practice pushes a 80 kg blocking sled across the field at a constant speed. The coefficient of kinetic friction between the grass and the sled is 0.30. How much force must he apply to the sled

Answer 1

Answer:

The value is  $F = 235.2 \ N$

Explanation:

From the question we are told that

   The mass of the sled is  $m = 80 \ kg$

  The  coefficient of friction is  $\mu = 0.30$

Generally the force that must be applied to the sled is equal to the frictional force experienced by the sled which is mathematically represented as

       $F = m * \mu * g$

=>    $F = 80 * 0.30 * 9.8$

=>    $F = 235.2 \ N$