1.

Aod the end af le3d

Answer»

magnitude of force = m*a

we need to find the acceleration of the body for which the speed will be 30m/s , at the end of the 1st second

so, using Newton's first formula of motionu=0V = u+at => 30 = a*1 , so, acceleration is a= 30m/s²..

now force = m*a = 2*30 = 60N



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