There are two boats, A and B. Boat A has a base area of 7 m2, and 5 persons are seated in it Class 8
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There are two boats, A and B. Boat A has a base area of 7 m2 and 5 persons are seated in it Class 8
There are two boats, A and B. Boat A has a base area of 7 m2, and 5 persons are seated in it. Boat B has a base area of 3.5 m2, and 3 persons are seating in it. If each person has a weight of 700 N, find out which boat will experience more pressure on its base and by how much? Class 8
Answer:
(a) Pressure in Boat A:
Base area of boat A = 7 m2
Total weight = Number of persons × Weight per person
= 5 × 700 - N = 3500 N
= Pressure = Force /Area
= 3500 N / 7m2
= 500 N /m2 (Pa)
(b) Pressure in Boat B:
Total weight = Number of persons x Weight per person
= 3 x 700 N = 2100 N
Pressure = Force/Area
= 2100 N / 3.5 m2
= 600 N /m2 (Pa)
Conclusion: Boat B experiences more pressure on its base. The difference in pressure is 600 Pa - 500 Pa = 100 Pa