contestada

What is the mass of an object that accelerates at "-1.56m/s" when pushed leftwards by a force of 300 N and has an opposing frictional force of 169 ?

Respuesta :

quitestudious
m=83.97

F=ma

leftwards force + force of friction = mass * acceleration

-300 N + 169 N = m(-1.56)
-131 = m(-1.56)
m= 83.97

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