Identify the intervals whene the acceleration in negative. Cotsiler only the intervals $0,10$

$10,20$

$20,30$

$30,40$ and $40,50.$

$($Give year snewer as an interval in the form $({?}^{**},).$ Use the sywbel ac for infling, U for combining intervals, and an appropriate type of parenthesis $"(")"."1","]"$ depending on wheher the introal is upes or closal. Enter oif the interval is empty. Express numbers in exact form. Use symbolic notation and fractions shere seeded.$)$