12-65. The jet plane starts from rest at s = 0 and is subjected to the acceleration shown. Determine the speed of the plane when it has traveled 1000 ft. Also, how much time is required for it to travel 1000 ft? a (ft/s?) 75 a = 75 – 0.025s 50 s (ft) 1000

Q: A particle with a mass of 4 kg has a position vector in meters given by r = 3t²i 2tj - 3tk, where t…

A: Given  Mass = 4kg r = (3t2i-2tj-3tk)m To find Angular momentum about origin Moment about origin

Q: *12–128. The car has an initial speed v, = 20 m/s. If it increases its speed along the circular…

A: here now ,,     velocity at s=25m        at=0.8s        a=vdvds∫ads= ∫vdv∫0s0.8 sds =…

Q: The slider P can be moved inward by means of the string S, while the slotted arm rotates about point…

A: To find: The velocity and acceleration of the slider at t=3.1 sec. Given: The angular position of…

Q: Determine the angle 0 and the tension in the cord when the speed of the sphere is 20 ft/s The sphere…

A: tension in the cord

Q: 12-144. The airplane flies along the horizontal circular path AB in 60 s. If its speed at point A is…

A:

Q: 12-78. A rocket is fired from rest at x = 0 and travels along a parabolic trajectory described by y²…

A:

Q: 12–49. The jet car is originally traveling at a velocity of 10 m/s when it is subjected to the…

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Q: *12-72. The velocity of a particle is given by v = {16ri+ 4r'j + (51 + 2)k} m/s, where t is in…

A:

Q: *12-232. The football player at A throws the ball in the y-z plane at a speed VA = 50 ft/s and an…

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Q: 12-43. A two-stage missile is fired vertically from rest with the acceleration shown. In 15 s the…

A: To plot: The v-t and s-t graphs which describe the two-stage motion of the missile for 0 ≤t≤ 20 s.

Q: The 31 kg crate is moving downward at 18 m/s. The motor M pulls on the cable with a force of F,…

A: The mass of the crate is .The downward speed is

Q: An amusement park ride consists of a car which is attached to the cable OA. The car rotates in a…

A: At t=0 s r1=17 ft, v=3 ft/s

Q: 11) The car travels along the circular path such that its speed is incre m/s², where t is in…

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Q: VA = 80 ft/s B 45° |10°

A:

Q: 12-50. The car starts from rest at s = 0 and is subjected to an acceleration shown by the a-s graph.…

A: Given Equation for acceleration and distance a = – 0.04s +24 To find Velocity distance curve of the…

Q: The slider P can be moved inward by means of the string S, while the slotted arm rotates about point…

A:

Q: F12-47. The boats A and B travel with constant speeds of A 0₁ = 15 m/s and v= 10 m/s when they leave…

A: Given:Speed of boat A, vA=15 m/sSpeed of boat B, vB=10 m/sAngle of boat A with horizontal,…