A ship moves in space along the trajectory: rt,t,t]. The air pressure in this medium is given by ...
2. [12 marks] The starship Hypatia travels along a trajectory t2 + 2)j + 2k, teļ-44] r(t)-2ti + ( close to a star centered at (x,y,z)- (0,0,0) that has temperature field given by то where R+ T(x,y,z)wh is the distance from the center of the star (which has outer edge at R -1). Compute the maximum temperature through which the space ship passes. If the ship can only survive temperatures (with shields on line) of T < To/3, will the...
Consider a point charge q moving arbitrar ily along a trajectory described by vector function of time r (t). The velocity of the charge is thus V(t)- di,(t)/dt. Suppose Q and Q'represent points on the trajectory where the charge is at time t and was at an earlier time t'. Let R(t) F r,(t) be the vector from the charge to the fixed point P as shown in the figure of particle re volume element de r" a) Prove the...
Average and Instantaneous Velocity A particle moves along the x axis. Its position varies with time acording to the expression x =-4t + 2t2, where x is in meters and t is in seconds. The position-time graph for this motion is shown in the figure. Notice that the particle moves in the negative x direction for the first second of motion, is momentarily at rest at the moment t = 1 s, and moves in the positive x direction at times...
Q2. The rod OB in Figure Q2 is rotating anticlockwise around O with an angular velocity of 2trad/s. Collar A moves along the rod with speed t sin(2t) m/s 8Orad and r-1m when t 0 s. a) Calculate the magnitude of the velocity vector of the collar A relative to o at t 1s. 5 Marks] b) Calculate the acceleration vector of the collar A relative to O at t-1s. [6 Marks] c) Determine the Cartesian velocity vector of the...
The velocity of a particle moving along the x axis is given for t > 0 by vx = (32.0 − 2.00t2) m/s, where t is in s. What is the acceleration of the particle when (after t = 0) it achieves its maximum displacement in the positive x direction?
2. A particle moves in the x-y plane. Its coordinates are given as functions of time t(2 0) b x(t)-R(at-sina)t), )Sketch the trajectory of the particle. This is the trajectory of a point on the rim of a wheel y(t)-R(1-cosω t), where R and ω are constants. (a) (3 that is rolling at a constant speed on a horizontal surface. The curve traced out by such a point as it moves through space is called a cycloid. (b) (5 Find...
A particle moves along a space curve,r=r(t) is the time measured from some initial time. if v=/dr/dt/=ds/dt is the magnitude of the velocity of the particle (s is the arc length along space curve measured from the initial position),prove that the acceleration a of particle is given by a=dv/dtT+v^2/pN where T and N are unit tangent and normal vectors to the space curve and p=|d^2r/ds^2|^-1={(d^2/ds^2)^2+. (d^2y/ds^2)^2 + (d^2z/ds^2)^2}^-1/2
A charged particle moves along the x-axis through a region with a uniform magnetic field that is oriented to lie in the x-y plane. Part a) Assume that the particle has a net charge of +669 μC and is moving with a velocity of 464 m/s in the +x direction at a particular instant. In that region of space, there is a uniform magnetic field of 1.91T directed in the x-y plane at an angle of +29.8 ∘ relative to...
A faulty model rocket moves in the xy-plane (the positive y-direction is vertically upward). The rocket's acceleration has components ax(t)=αt2 and ay(t)=β−γt, where α = 2.50 m/s4, β = 9.00 m/s2, and γ = 1.40 m/s3. At t=0 the rocket is at the origin and has velocity v 0=v0xi^+v0yj^ with v0x = 1.00 m/s and v0y = 7.00 m/s. a. Calculate the velocity vector as a function of time. Express your answer in terms of v0x, v0y, β, γ, and...
2.
General Motion with Unit Vectors and Components An object undergoes the following consecutive displacements: s (2i +3j +5k)m,s2 (6i-91+ 2krn, and s,-(10i + 8j-km a) Find the resultant displacement in terms of unit vectors and components. b) State the magnitude of the resultant displacement. 2. Suppose a hiker travels 5 km southwest from their camp. Then, the hiker travels 2 km 75° north of east. a) Find the displacement of the hiker form their camp. b) If the hiker...