Answer to Question #97871 in Mechanics | Relativity for Benedicta Fosu

Question

force of 900 N was applied at angle 65o
to the running plane. Assuming a 70 % restitution,
calculate the ground reaction force that propels the athlete forward.
force of 900 N was applied at angle 65o
to the running plane. Assuming a 70 % restitution,
calculate the ground reaction force that propels the athlete forward.

Answer 1

$$F_{ground} =0.7Fsin°65$$

Where F ground - reaction force, F - applied force

F ground= 0.7*900*0.906= 570.78 N