v-t graph of an object of mass 1 kg is shown.Select the wrong statement-

Options

A. Work done on the object in 30 s is zero
B. The average acceleration of the object is zero
C. The average velocity of the object is zero
D. The average force on the object is zero

Answer

C

Explanation

(c ) Average velocity `=("Total displacement" )/("Time")`
`=("Area under v-t graph")/("Time")`
Since area `!=0`
`:. "Average velocity" !=0`