With steps please.?

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1 Answer
Noah G · 1s2s2p
Nov 13, 2017

It will take #1.25# seconds.

Explanation:

We know that #F = ma#. Therefore, solving for acceleration we get:

#8.00 = 2.00 * a#

#a = 4.00 ms^(-2)#

Using #a=(Deltav)/(Deltat)#, we get:

#4.00=(7-2)/(Deltat)#

#4.00=5/(Deltat)#

#Deltat=5/4.00=1.25#

Hopefully this helps!

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