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The density of the solid cylindrical bar...


The density of the solid cylindrical bar shown in the figure is` 5xx 10^(3)` kg `m^(-3)` . The weight of the bar is `"_________"` N. (take g=10 m `s^(2)`

A

157

B

1570

C

320

D

3.2

Text Solution

Verified by Experts

The correct Answer is:
A
Density `=5 xx 10^(-3) kg m^(-3)`
Volume `=pi xx ("radius")^2 xx" height"=3.14 xx (0.1^2) xx 0.1`
`=0.00314 m^3`
`"Density "=("mass")/("volume")`
Mass `="density "xx" volume "=5 xx 10^(3) xx 0.00314`
=15.7kg
Weight `=m xx g=15.7 xx 10=157N`
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