Author Question: A 4.0-kg object is moving with speed 2.0 m/s. A 1.0-kg object is moving with speed 4.0 m/s. Both ... (Read 139 times)

j.rubin · **on:** Jul 29, 2018

A 4.0-kg object is moving with speed 2.0 m/s. A 1.0-kg object is moving with speed 4.0 m/s. Both objects encounter the same constant braking force, and are brought to rest. Which object travels the greater distance before stopping?

A) the 4.0-kg object
B) the 1.0-kg object
C) Both objects travel the same distance.
D) It is impossible to know without knowing how long each force acts.

Question 2

Consider a plot of the displacement (x) as a function of the applied force (F) for an ideal elastic spring. The slope of the curve would be

A) the acceleration due to gravity.
B) the spring constant.
C) the reciprocal of the acceleration of gravity.
D) the mass of the object attached to the spring.
E) the reciprocal of the spring constant.