A man weighing 60 kg holds a box weighing 15 kg on his shoulders. With what force does a person press on the ground?

To find the value of the force of pressure of the person holding the box on the ground, apply the formula: P = Ft = m * g = (mh + my) * g.

Constants and variables: mh – human weight (mh = 60 kg); mя – the mass of the held box (mа = 15 kg); g – acceleration due to gravity (g ≈ 9.8 m / s2).

Let’s make a calculation: P = (mh + my) * g = (60 + 15) * 9.8 = 735 N.

Answer: A person holding a box must press on the ground with a force of 735 N.