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Anastasy [175]
3 years ago
12

A boat having a length 3m and breadth 2m is floating on a

Physics
1 answer:
brilliants [131]3 years ago
3 0

Answer:

60 kg

Explanation:

The man's weight is equal to the weight of the water he displaces.

mg = ρVg

m = ρV

m = (1000 kg/m³) (3 m × 2 m × 0.01 m)

m = 60 kg

The man's mass is 60 kg.

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If an object force of 50 N is used to move an object a distance of 20 m, what distance must the object be moved if the input for
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Answer:

\ d_{out} = 100 \ m.

Explanation:

Given data:

F_{in} = 50 \ \rm N

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d_{in} = 20 \ m

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A 30 ton rail car and a 90 ton rail car, initially at rest,are connected together with a giant but massless compressed springbet
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