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Answers
Answer:
Force exerted(weight) by elephant on one foot = 40,000 N
Force exerted(weight) by girl on one stiletto heel = 400 N
1000 cm² = 0.1 m²
1 cm² = 0.0001 m²
Pressure exerted by elephant = Force/Area = 40000 /0.1 = (40000 × 10)/1 = 4,00,000 Pa
Pressure exerted by girl = Force/Area = 400 /0.0001 = (400 × 10000) /1 = 40,00,000 Pa
(a) The elephant exerts more force on the ground than girl by 39,600 N
[40,000 - 400 = 39,600 Pa]
(b) The elephant exerts 4,00,000 Pa of pressure on the ground
(c) The girl exerts 40,00,000 Pa of pressure on the ground
(d) The girl exerts larger pressure on ground than elephant
(e) The ratio of pressure exerted by girl to pressure exerted by elephant = 40,00,000/4,00,000 = 10:1
Hope this helps you, and if there is a mistake somewhere I am sincerely sorry