Question

an object is moving forward with a constant velocity. which statement about this object must be true?

Answer 1

• Its acceleration is zero

Step-by-step explanation:

from definition of acceleration:

`{ \rm{acceleration = (change \: in \: velocity)/(time) }} \\ \\ { \rm{acceleration = ( \delta \: (velocity))/(time) }}`

• since velocity is constant, change in velocity is zero

`{ \boxed{ \rm{ \delta \: (velocity) = 0}}}`

• therefore:

`{ \rm{acceleration = (0)/(time) }} \\ \\ { \boxed{ \tt{acceleration = 0 \: m {s}^( - 2) }}}`