x \\ e Che9g Study Guided Grades EM EN 4030-0). Transfered into Distan X Mediasi
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x e Che9g Study Guided Grades EM EN 4030-0). Transfered into Distan X Mediasite Lecture Acce × / Home ork 1 PHYS 2 cole secure! https://learn.colorado.edu/d2l/le/content/229376/viewContent/3170968/View × T 8 ways to take screens : Apps LaTex-A document D r Learn | University of MyCUnfol Universit Pilot Practice Page ( Nepal | College of En My Home > PHYS 2170001: Foundati Devon Ricken Reading: TZD Ch.1.1-1.4 Problems: You must show your work to receive full credit. Write neatly and organize your thoughts. l. Imagine two inertial francs, S and s". Inertial frame S' moves with velocity to = 5 m/s in the upward (positive y) direction as seen by an observer in frame S. Now magine that a person at rest in frame S throws a ball with mass m straight up into the air with initial velocity vo (with respect to frame S) from an initial height of y = y' = 0 at time t = 0. Use Galilean relativity, and take gravity into Use a reasonablember of significant digits and appropriate units. (Questions follow.) account. a) According to frame S', does the ball appear to be moving after it is thrown for t> 0? b) What is the acceleration of the in frame S? And what is the acceleration of the ball in frame S? Give numbers with appropriate units. c) What is the maximum height ynar that the ball reaches according to frame S? d) What is the position of the ball y/yma according to frame S' when it reaches its maximum height mar in frame S? 2. Recall Maxwell's equations in a vacuum, dPB dt E-d1 = dop B-dA=()Explanation / Answer
given, velocity of inertial frame S' wrt frame S, vo = 5 m/s along +y axis
initial velocit of ball thrown upwards in frame S, = vo = 5 m/s
a. as the velocity of the ball thrown up in frame S will start reducing the moment it is released, as the gravity points downwards. Now, since the inertial frame S' has a constnat upward velocvity vo, the ball in this frame will appear to be moving downwards with a -ve velocity which will increase with time
b. Acceleration of ball will be the same in both the frames as both are inertial frames
this acceleration is -9.81 m/s^2 ( along -ve y axis)
c. In frame S, maximum, heeight = Smax
now, 2*g*Smax = vo^2
Smax = 25/2g = 1.274 m
d. time taken to reach Smax = t
vo = gt
t = 5/9.81 = 0.5096 s
distance copvered by frame S' in this time, S' = vo*t = 2.548 m
so in this frame y'max = 1.274 - 2.548 = -1.274 m
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