Net Force Using Newton's Second Law · PhysicsBowl 2011 #12

Physics · mechanics

Problem

A mass

5.0

kg moves along the

x

-axis. At one instant of time, the mass has position

x = 2.0

m, velocity

v = 3.0

m/s, and acceleration

a = 4.0

m/s². What is the net force acting on the mass at this instant of time? (A) 0 N (B) 10.0 N (C) 15.0 N (D) 20.0 N (E) 22.5 N