(a) For the system of space probes and launcher, is the force of the exploding bolts: O Internal O External (b) Is momentum conserved in this case? O Yes, momentum is conserved because no external forces act on the system. O No, momentum is not conserved because the force of the expanding bolts is present. (c) What is the KE of the system after separation? KE,= (d) Solve for their subsequent velocities. Hint: How many equations do you need to solve for the unknowns? Can you identify and set-up the equations? Vs,f= V₁,1 = m/s m/s
(a) For the system of space probes and launcher, is the force of the exploding bolts: O Internal O External (b) Is momentum conserved in this case? O Yes, momentum is conserved because no external forces act on the system. O No, momentum is not conserved because the force of the expanding bolts is present. (c) What is the KE of the system after separation? KE,= (d) Solve for their subsequent velocities. Hint: How many equations do you need to solve for the unknowns? Can you identify and set-up the equations? Vs,f= V₁,1 = m/s m/s
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Transcribed Image Text:(a) For the system of space probes and launcher, is the force of the exploding bolts:
O Internal
O External
(b) Is momentum conserved in this case?
O Yes, momentum is conserved because no external forces act on the system.
O No, momentum is not conserved because the force of the expanding bolts is present.
(c) What is the KE of the system after separation?
KE₁=
(d) Solve for their subsequent velocities.
Hint: How many equations do you need to solve for the unknowns? Can you identify and set-up the
equations?
Vs,f=
Vit
m/s
m/s
11:53 AM
Transcribed Image Text:1. Space probes may be separated from their launchers by exploding bolts. (They bolt away from one
another.) Suppose a 4100-kg satellite uses this method to separate from the 1200-kg remains of its
launcher, and that 3000 J of kinetic energy is supplied to the two parts.
Assume that the satellite and launcher are at rest before separation and the direction of the
satellite's velocity after separation is positive. Gravity is negligible compared to the force of explosion.
Consider: Let the subscripts i and f denote the initial and final velocities and the subscripts s and/
denote the satellite and the launcher, respectively. How many knowns are there and how many
unknowns?
satellite
launcher
Before launch
Vsf
satellite
launcher
V₁
After launch
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We when describing the motion first choose our system. Any number of bodies or objects we can keep in our system but one condition must be fulfilled. This condition is that every part of system should have same acceleration. We are given exploding bolts which separate the 2 bodies.
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