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A block of material of volume 20cm-3 and density 2.5gcm-3 is suspended...

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Question 57
A
8g
B
25g
C
30g
D
40g
E
50g
Explanation
W = pvg = (2.5 x 10 x 60)/100 = 0.500N.
Upthrust = wt of liquid displaced = pvg water.
pvg water = (1x20x10)/2 = 0.10N
Reading => 0.500N - 0.100N = 0.4N = 40g

Correct option: D

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