Answer:
f = 686N
Explanation:
parameters given ;
mass = 70kg
force = ?
acceleration due to gravity = 9.8m/s²
from the formula for finding force ,
force is equals to mass of an object multiplied by its acceleration due to gravity
i.e
f = ma
f = 70 × 9.8
f = 686N
Therefore the force that she uses to push she pushes on the ground before she stands up is 686NEWTON.
