Author Question: An object is attached to a hanging unstretched ideal and massless spring and slowly lowered to its ... (Read 191 times)

j.rubin · **on:** Jul 29, 2018

An object is attached to a hanging unstretched ideal and massless spring and slowly lowered to its equilibrium position, a distance of 6.4 cm below the starting point.

If instead of having been lowered slowly the object was dropped from rest, how far then would it then stretch the spring at maximum elongation? A) 13 cm
B) 9.1 cm
C) 6.4 cm
D) 18 cm
E) 26 cm

Question 2

Car A is traveling at 22.0 m/s and car B at 29.0 m/s. Car A is 300 m behind car B when the driver of car A accelerates his car with an acceleration of 2.40 m/s2. How long does it take car A to overtake car B?

A) 5.50 s
B) 12.6 s
C) 19.0 s
D) 316 s
E) Car A never overtakes car B.