1.

Calculate the Force required to move a stationary object of mass 3kg from rest to velocityat 8 m/s in 2 seconds.

Answer»

given data:v = 8m = 3kgt = 2 secondsu = 0

by using 1st equation of motion, we will find acceleration firstlyv = u+at8 = 0+2aa = 4 m/s^2

force = mass×accelerationforce = 4×3 = 12N



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