1.

A force `F=(6hati-8hatj+10hatk)`N produces acceleration of `sqrt(2) ms^(-2)` in a body. Calculate the mass of the body.A. 10 kgB. 8 kgC. 12 kgD. 9 kg

Answer» Correct Answer - A
`F=ma` or `m=(|F|)/(|a|)=(|6 hat(i)-8hat(j)+10 hat(k)|)/sqrt(2)`
`=sqrt(6^(2)+8^(2)+10^(2))/sqrt(2)=10 kg`


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