Solution Found!
(a) If the rocket sled shown in Figure 4.32 starts with
Chapter 4, Problem 7(choose chapter or problem)
a) If the rocket sled shown in Figure \(4.32\) starts with only one rocket burning, what is the magnitude of its acceleration? Assume that the mass of the system is \(2100 kg\), the thrust \(T\) is \(2.4 \times 10^{4} \mathrm{~N}\), and the force of friction opposing the motion is known to be \(650 N\).
(b) Why is the acceleration not one-fourth of what it is with all rockets burning?
Equation Transcription:
Text Transcription:
4.32
2100 kg
T
2.4 times 10^4 N
650 N
Questions & Answers
QUESTION:
a) If the rocket sled shown in Figure \(4.32\) starts with only one rocket burning, what is the magnitude of its acceleration? Assume that the mass of the system is \(2100 kg\), the thrust \(T\) is \(2.4 \times 10^{4} \mathrm{~N}\), and the force of friction opposing the motion is known to be \(650 N\).
(b) Why is the acceleration not one-fourth of what it is with all rockets burning?
Equation Transcription:
Text Transcription:
4.32
2100 kg
T
2.4 times 10^4 N
650 N
ANSWER:
Part (a)
Step 1 of 4:
The mass of the rocket sled with the fuel is provided. The thrust applied and the frictional forces are given. We need to find the magnitude of acceleration (a) produced in the system when the rocket starts moving with one rocket burning. Consider the frictional force affects the motion.
The mass of the rocket system m = 2100 kg
Thrust applied T = 2.4 x 104 N
The frictional force f = 650 N