\"\"

\

The velocity function is \"\", \"\" .

\

The velocity of an object at \"\" is \"\".

\

Substitute \"\" in the velocity function.

\

\"\"

\

The velocity of an object at \"\" is \"\" m/sec.

\

\"\"

\

The acceleration of the object is \"\" .

\

\"\"

\

The acceleration function is \"\".

\

The acceleration of an object at \"\" is \"\".

\

Substitute \"\" in the acceleration function.

\

\"\"

\

The acceleration of an object at \"\" is \"\" m/sec2.

\

Here the negative sign of the acceleration indicates that the speed of object is decreasing.

\

\"\"

\

The velocity of an object at \"\" is \"\" m/sec.

\

The acceleration of an object at \"\" is \"\" m/sec2.

\

Speed of the object is decreasing.