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Answer 1 · 2018-02-16T02:09:47

True.

Acceleration by definition change of velocity over time.
Now that the object is increasing 10 m/s every second, so it's acceleration is:

#(10m/s)/(1s) = 10 m/(s*s) = 10 m/s^2#

Answer 2 · 2018-02-16T04:09:50

True.

Since acceleration is defined as the rate of change of velocity over time, it can be written as

#a=(dv)/dt#

or

#a=(v-u)/t#

If #u# is at rest, it will be #0#, and the equation becomes

#a=v/t#

In here, #v=10m"/"s#, #t=1s#

So,

#a=(10m"/"s)/s=10m"/"s^2#

In other words, the object's velocity will increase by #10m"/"s# every second.