Determine when an object is accelarating

When it's speed or velocity changes with time

Explanation:

In simple terms, acceleration means the change in the velocity at which object moves in accordance to the time interval at which then velocity change occurs. This means that for acceleration to have taken place, there has to be a difference in travel or moving velocity of the object with a certs in time interva.the proportion of velocity change and time is the value acceleration.

Hence, for body which maintains a contain rate of velocity, that is (no net increase or decrease in the velocity over a measured time interval, then th acceleration of such body is ZERO.

ACCELERATION = (Final - Initial Velocity) / time interval. Acceleration is measured in m/s²

the other answer is almost completely right apart from the first two answers being b and c

1. when students come to class, everyone.

2. ricardo hasn't seen his father in six months. when you see it,.

3. good friends when they're in trouble.  

4. it's the end of the wedding. the groom and the bride.

5. my girlfriend and i are getting married because a lot.

6. irene and vicente many electronic messages when you don't see them.

7. i talk to my sister every day. we do every day.

8. when sandra goes out to eat with her friends, they at the restaurant.

explanation:

as i can translate spanish i'm thinking that you want the translation so here they are for each one of them.

hopes this you mi amigo : ).