Question

A bunny when it bounces straight up to a 1.6 m height created an average pressure where it is applied on the ground, estimate the average pressure. Utilize the accompanying parameters: the bunny's mass m = 43.1 kg, the time of the contact between the bunny's feet and the ground during the bounce t = 0.17 sec, and the bunny's foot region A = 27.5 cm². Expect that the bunny hops by pushing with it's both feet.

Pressure created by the hopping bunny,

P1 = Unit in psi

Only for correlation, compute the pressure applied on the ground by a 8,300‑lb elephant remaining on one foot with an area of 220 in².

Pressure created by the elephant,

P2 = Unit in psi

Answer 1

9 , As bunny Jorce to Aue. bounces it applies overcome by pushing and de accelerates need to do 1.6 m. ind this force. hure is acceleration applied to bonce growity B a C 1.6m. F-ng ma ma girl. А and by energy conservation į mg ot A & B point- Imuz migh. us velocity at A. point . 2 v2 agh. Jagh V. 2x9.8*1-6 V = 5-6 mils come Sand speed Go the will Lidl bunny down at A point and change it to just megnitule in oppo side discedion to bounce i.e jies sone bunny coming down u t Qt. → u = 5.6 mis. ve +5.6 m/s t = 17 sec +5.6 =-5.6 talo:17) = 65.88 mls. a = 11.2 0:17 12 F ng + ma. migra) 43.119.8 +65-8] - F = 3261-9 N & zla orca Ressuse P= Porce 3261.9 2x27.55x104 P = 5.938105 Pa. P, = 85.9 Psi Jos elephant P = Jorce 11 ng the foot area = 8300 x 32:174 x 12. 19 = 32.174 By 220 =32:174x12 in Pa- 14566.04 Psi