1.

A force vector applied on a mass is represented asoverset(to)(F)=6overset(^)(i)-8overset(^)(j)+10overset(^)(k)and it accelerates it at 1 ms-2 What is the mass of the body?

Answer»

`10sqrt(2) kg`
`2sqrt(10) kg`
`20 kg`
`10 kg`

Solution :`F=maimpliesm=(F)/(a)`
`m=sqrt(6^(2)+(-8)^(2)+10^(2))/(1)=10sqrt2kg`
Hence CORRECT choice is (a).


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