"The sum of joint forces that the body must absorb when slowing down is equal in magnitude and oppositely directed to the external forces tat slow the body down"
the action - reaction principle
Which external forces slow the body down when it contacts the ground after a jump?
two ground reaction forces (one vertical and one horizontal)
"Linear Impulse - Momentum Principle"
A change in factor that would decrease the vertical ground reaction force when landing after a jump
a decrease in the mass (m) of the body
and/or
a decrease in the linear speed (s) of landing
and/or
an increase in the application time (t) of the vertical ground reaction force
A soft foam pit is used for landing after a high jump in track and field. According go the linear impulse-momentum relationship, the foam put reduces the impact force by...
decreasing the vertical ground reaction force when landing.