Physics, 17.02.2022 23:00 regantyler3500
A rocket initially traveling straight up at a speed of 20.0 m/s undergoes constant acceleration in the direction of travel to a speed of 30.0 m/s over a distance of 40.0 m. What is the magnitude of the rocket's acceleration?
0.125
2.50
6.50
12.5
Answers: 2
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Afaulty model rocket moves in the xy-plane (the positive y direction is vertically upward). the rocket's acceleration has components ax(t) = ? t2 and ay(t) = ? ? ? t, where ? = 2.50 m/s4 , ? = 9.00 m/s2 , and ? = 1.40 m/s3 . at t = 0 the rocket is at the origin and has velocity ~v0 = v0x ? i + v0y ? j with v0x = 1.00 m/s and v0y = 7.00 m/s. (a) calculate the velocity and position vectors as functions of time. (b) what is the maximum height reached by the rocket? (c) sketch the path of the rocket. (d) what is the horizontal displacement of the rocket when it returns to y = 0?
Answers: 1
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