Author Question: A 50.0-kg box is being pushed along a horizontal surface by a force of 250 N directed 28.0 below the ... (Read 60 times)

altibaby · **on:** Jul 29, 2018

A 50.0-kg box is being pushed along a horizontal surface by a force of 250 N directed 28.0 below the horizontal. The coefficient of kinetic friction between the box and the surface is 0.300. What is the acceleration of the box?

A) 0.769 m/s2
B) 1.77 m/s2
C) 3.16 m/s2
D) 6.31 m/s2
E) 8.53 m/s2

Question 2

A nucleon is either a

A) positron or an electron.
B) proton or an electron.
C) neutron or an electron.
D) proton or a neutron.