The velocity of a an object in linear motion changes from +25 meters per second to +15 meters per second in 2.0 seconds.

Explanation:

Missing question:

What is the object's acceleration?

Solution:

The acceleration of an object is given by

where

v is the final velocity

u is the initial velocity

t is the time taken for the change in velocity

For the object in this problem,

u = +25 m/s

v = +15 m/s

t = 2.0 s

Substituting,

And the acceleration is negative because its direction is opposite to that of the velocity.

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