27. A boat having a length of 3 metre and breadth 2 metre
is floating on a lake. The boat sinks by 1 cm when
a man gets on it. The mass of the man is
Answers
Answered by
13
Given :
A boat having a length of 3 metre and breadth 2 metre is floating on a lake. The boat sinks by 1 cm when a man gets on it.
To find :
The mass of the man is
Solution :
Volume of water displaced
➵ v = 3m x 2m x (1/100)m
➵ v = (6/100) m³
mass of man = mass of water displaced
➵ m = vp
➵ (6/100m³) (1000kg/m³)
➵ 60 kg
∴ The mass of the man is 60 kg
Extra information :
Cube
- V = s³
Right Rectangular Prism
- V = LWH
Prism or Cylinder
- V = Ah
Pyramid or Cone
- V = ⅓Ah
Sphere
- V= 4/3πr³
Answered by
28
Answer:
✡ Given ✡
A boat having a length of 3m and breadth of 2m is floating on a lake.
The boat sinks by 1cm when a man gets on it.
✡ To Find ✡
What is the mass of the man.
✡ Solution ✡
✏ Length of a boat is 3m.
✏ Breadth of a boat is 2m.
✏ The boat sinks depth by 1cm or 1-² cm
(3×2×10-²)m³ × (10³) kg/m³
3 × 2 × 10 kg
60 kg
✴ The mass of man is 60 kg.
Step-by-step explanation:
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