1.

An object of mass 5 kg is acted upon by exactly four forces,, each of magnitude 10 N. which of the following could NOT be the resulting acceleration of the object?

Answer»

`0m//s^(2)`
`2m//s^(2)`
`4m//s^(2)`
`10m//s^(2)`

Solution :The maximum net FORCE on the object ocurs when all FOUR forces act in the same direction, given `F_("net")=4F=4(10N)=40N`, and a resulting acceleration of `a=F_("net")//m=(40N)//(5kg)=8m//s^2`. These four forces could not GIVE the object an acceleration GREATER than this.


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