Author Question: The only force acting on a 2.0-kg body as it moves along the x axis is given by Fx = (12 - 2.0x) N, ... (Read 205 times)

charchew · **on:** Jul 28, 2018

The only force acting on a 2.0-kg body as it moves along the x axis is given by Fx = (12 - 2.0x) N, where x is in m. The velocity of the body at x = 2.0 m is 5.5 m/s. What is the maximum kinetic energy attained by the body while moving in the +x direction?
a. 36 J
b. 39 J
c. 43 J
d. 46 J
e. 30 J

Question 2

The only force acting on a 2.0-kg body moving along the x axis is given by Fx = (2.0x) N, where x is in m. If the velocity of the object at x = 0 is +3.0 m/s, how fast is it moving at x = 2.0 m?
a. 4.2 m/s
b. 3.6 m/s
c. 5.0 m/s
d. 5.8 m/s
e. 2.8 m/s