Question

Discuss how each Newtonian Law of Motion can influence an individual walking in sand. Further, thoroughly explain how two joints and functional muscle groups can be influenced in this movement pattern.

Answer 1

NEWTONS FIRST LAW OF MOTION-

This law states that a body remains in its state of motion or rest unless an external force acts on it. Inertia keeps us moving forward while walking. Walking on sand is a lot different than walking on normal road or pavement etc. Sand causes our forward motion to slow down and thus we require more energy to walk on sand. Thus, if you want to exercise then walking on sand is a better option than walking on pavement.

NEWTON'S SECOND LAW OF MOTION-

This law states that the velocity of the motion can be changed by varying the applied force. Thus when we walk on sand, and we want to increase our velocity then we will require more effort to do so.

NEWTON'S THIRD LAW OF MOTION-

This law in short can be said as every action has equal and opposite reaction. When we are walking on any normal surface like pavement then we actually put force on earth in pushing it backwards and in return earth also pushes us with the same amount of force. And hence, we can walk! But walking on sand will obviously require more force so that earth pushes you back with the same intensity.