The position of a particle moving along the x axis is given in centimeters by x = 9.10 + 1.27 t³, where t is in seconds. Calculate (a) the average velocity during the time interval t = 2.00 s to t = 3.00 s; (b) the instantaneous velocity at t = 2.00 s; (c) the instantaneous velocity at t = 3.00 s; (d) the instantaneous velocity att = 2.50 s; and (e) the instantaneous velocity when the particle is midway between its positions at t= 2.00 s andt = 3.00 s.

Modern Physics
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Author:Raymond A. Serway, Clement J. Moses, Curt A. Moyer
Publisher:Raymond A. Serway, Clement J. Moses, Curt A. Moyer
Chapter1: Relativity I
Section: Chapter Questions
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The position of a particle moving along the x axis is given in centimeters by x = 9.10 + 1.27 t3, where tis in
seconds. Calculate (a) the average velocity during the time interval t = 2.00 s to t = 3.00 s; (b) the instantaneous
velocity at t = 2.00 s; (c) the instantaneous velocity at t = 3.00 s; (d) the instantaneous velocity at t= 2.50 s; and
(e) the instantaneous velocity when the particle is midway between its positions at t= 2.00 s and t= 3.00 s.
(a) Number
Units
(b) Number
i
Units
(c) Number
i
Units
(d) Number
i
Units
(e) Number
i
Units
()
Transcribed Image Text:6 40 4:05 O O 28.6 N (VPN) KB/s 79 The position of a particle moving along the x axis is given in centimeters by x = 9.10 + 1.27 t3, where tis in seconds. Calculate (a) the average velocity during the time interval t = 2.00 s to t = 3.00 s; (b) the instantaneous velocity at t = 2.00 s; (c) the instantaneous velocity at t = 3.00 s; (d) the instantaneous velocity at t= 2.50 s; and (e) the instantaneous velocity when the particle is midway between its positions at t= 2.00 s and t= 3.00 s. (a) Number Units (b) Number i Units (c) Number i Units (d) Number i Units (e) Number i Units ()
46 4:05 O O
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In the figure here, a red car and a green car move toward each other in adjacent lanes and parallel to an x axis.
At time t= 0, the red car is at x, = 0 and the green car is at xg = 215 m. If the red car has a constant velocity of
27.0 km/h, the cars pass each other at x = 43.0 m. On the other hand, if the red car has a constant velocity of
54.0 km/h, they pass each other at x = 76.4 m. What are (a) the initial velocity and (b) the (constant)
acceleration of the green car? Include the signs.
(a) Number
i
Unit
(b) Number
i
Unit
()
Transcribed Image Text:46 4:05 O O 4G 21.0 A (VPN KB/s 79 In the figure here, a red car and a green car move toward each other in adjacent lanes and parallel to an x axis. At time t= 0, the red car is at x, = 0 and the green car is at xg = 215 m. If the red car has a constant velocity of 27.0 km/h, the cars pass each other at x = 43.0 m. On the other hand, if the red car has a constant velocity of 54.0 km/h, they pass each other at x = 76.4 m. What are (a) the initial velocity and (b) the (constant) acceleration of the green car? Include the signs. (a) Number i Unit (b) Number i Unit ()
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