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physics help In the dark in outer space, you observe a glowing ball of known mas

ID: 1354338 • Letter: P

Question

physics help In the dark in outer space, you observe a glowing ball of known mass 4.4 kg moving in the xy plane at constant speed in a circle of radius 8 m, with the center of the circle at the origin ( m). You cant see whats making it move in a circle. At time t = 0 the ball is at location m and has velocity m/s. On your own paper draw a diagram of the situation, showing the circle, and showing the position and velocity of the ball at time t = 0. The diagram will help you analyze the situation. Use letters a-j to answer questions about directions (+x to the right, +y up): At time t = 0, what is the direction of the vector At time t = 0, what are the magnitude and direction of the parallel component of magnitude = kg m/s/s At time t = 0, what are the magnitude and direction of the perpendicular component of at magnitude = kg m/s/s At time t = 0, even though you cant see whats causing the motion, what can you conclude must be the direction of the vector At time t = 0, even though you cant see whats causing the motion, what can you conclude must be the vector You learn that at time t = 0, two forces act on the ball, and that at this instant one of these forces is What is the other force?

Explanation / Answer

(c) The parallel component is 0 and the direction will be J .
(d) At t = 0 the direction of dp/dt will be toward negative x axis that is g .

(e) Fnet always takes place toward the centr e therfore the directio will be g.

(f) Fnet = mV2/r = 3093.75 N
Fnet = 3094 (-i) + o j + ok
<3094 , 0 , 0 >
(g) Fnet = 3094 (-i)
Fnet = F1 + F2
Where F1 = 928 i + 2784 j
F2 = xi + yj + zk
Fnet = 928 i + 2784 j + xi + yj + zk
-3094 i = 928 i + 2784 j + xi + yj + zk
xi + yj + zk = -4022 i -2784 j +0 k
F2 = <-4022 , -2784 , 0>