(a) as the second car has constant speed
we have
-4.2 + 2.70t = 5.60
t = 3.629 sec
---------------------------------------------------------------------
(b) both will have same speed
5.60 cm/s
------------------------------------------------------------------
(c) equation for positions is given a
x1 = 14.5 - 4.2t + 1.35*t2
x2 = 9.5 + 5.6t
set x1 = x2
14.5 - 4.2t + 1.35*t2 = 9.5 + 5.6t
1.35t2 - 9.8t + 5 = 0
solve for t
we get
t = 9.8 +/- 8.31 / 2.7
t = 6.71 sec and t = 0.5518 sec
---------------------------------------------------------------------
(d) locations where they pass one another
we get
x1 = 9.5 + 5.6t = 12.6 cm
x2 = 9.5 + 5.6t = 47.1 cm
Please answer fully, thank you! At t 0, one toy car is set rolling on a straight track with initial position 14.5 cm, initial velocity -4.2 cm/s, and constant acceleration 2.70 cm/s2. At the same mom...
At t = 0, one toy car is set rolling on a straight track with initial position 17.0 cm, initial velocity -4.1 cm/s, and constant acceleration 2.90 cm/s2. At the same moment, another toy car is set rolling on an adjacent track with initial position 9.0 cm, initial velocity 6.00 cm/s, and constant zero acceleration. (a) At what time, if any, do the two cars have equal speeds? (b) What are their speeds at that time? (c) At what time(s),...
At t 0, one toy car is set rolling on a straight track with initial position 15.0 cm, initial velocity-3.50 cm/s, and constant acceleration 2.40 cm/s. At the same moment, another toy car is set rolling on an adjacent track with ini- tial position 10.0 cm, initial velocity +5.50 cm/s, and con- stant acceleration zero. (a) At what time, if any, do the two cars have equal speeds? b) What are their speeds at that time? (c) At what time(s),...
I have no idea why question c is wrong. Please help me Panth My B Ceng ← → C i https://wwww Ass stadep 20528633 At t o, one toy car is set rolling on a straight track with initial position 15.5 om, initial velocity 3.4 om/s, and constant acceleration 2 00 cme At the same moment, another toy car is set rolling on an adjacent track with initial position 9.0 cm, initial velocity 4.80 cm/s, and constant zero acceleration a)...
Two carts are set in motion at t 0 on a frictionless track in a physics laboratory. The first cart is launched from an initial position of x - 17.5 cm with an initial velocity of 11.0i cm/s and a constant acceleration of -3.007 cm/s2 The second cart is launched from x- 20.1 cm with a constant velocity of 5.oai cm/s (a) Wha are the times for which the two carts have equal speeds? earlier tirme later time Your response...
A car starts at position x = 0, with an initial velocity of 3.5 m/s and an acceleration of 0 m/s2. What is its position when the elapsed time is 7.4 s? (Please be sure to include units in your answer. Express your answer to one decimal point.)