An object accelerates uniformly from 3.0 meters per second east to 8.0 meters per second east in 2.0 seconds. What is the magnitude of the acceleration of the object ?

2.5

Explanation:

As we can see in the question that initial and final directions of the velocity of the object are same i.e. east, so it is clear that object is in a straight line motion.

Given that,

Initial velocity of the object = 3 m/s

Final velocity of the object = 8 m/s

Time interval = 2 seconds

The following equation of motion in straight line can be used -

And thus acceleration can be calculated as

where, is final velocity and is initial velocity.

So,

layers of the earth affect the waves and these effects are seen on instruiments such as seimometers