Behaviorism I'd say. To motivate their psychology there is certain influence of the behaviour of others to them.
The rate at which the acceleration changes.
Hope this helped.
the answer is in the picture ok
good luck don't worry it's a correct
#carry on learning
Centripetal force needed to move mass 'm' in a circle with radius 'r' at speed 'v' is
F = m · v² / r
F = (85 kg) ·(15 m/s)² / (20 m)
F = (85kg · 225m²) / (20 m·s²)
F = (85 · 225 / 20) (kg·m² / m·s²)
F = 956.25 kg·m/s²
F = 956.25 Newtons