In: Physics
At t = 0, one toy car is set rolling on a straight track with initial position 14.0 cm, initial velocity -3 cm/s, and constant acceleration 2.30 cm/s2. At the same moment, another toy car is set rolling on an adjacent track with initial position 8.5 cm, initial velocity 6.00 cm/s, and constant zero acceleration.
(a) At what time, if any, do the two cars have equal speeds?
(Enter NA if the cars never have equal speeds.)
(b) What are their speeds at that time? (Enter NA if the cars never
have equal speeds.)
cm/s
(c) At what time(s), if any, do the cars pass each other? (If there
is only one time, enter NA in the second blank. If there are two
times, enter the smaller time first. If they never pass, enter NA
in both blanks.)
(d) What are their locations at that time? (If there is only one
position, enter NA in the second blank. If there are two positions,
enter the smaller position first. If they never pass, enter NA in
both blanks.)
(e) Explain the difference between question (a) and question (c) as
clearly as possible.