An object with a mass of #2 kg# is on a surface with a kinetic friction coefficient of # 2 #. How much force is necessary to accelerate the object horizontally at #8 m/s^2#?
1 Answer
Apr 23, 2018
Explanation:
From Newton’s second law on a smooth surface
#"F = ma"#
But here surface is not smooth. Extra force is required to neutralise the effect of friction
#"F = ma + μmg"#