Concept explainers
The force exerted by the rocket engine on

Answer to Problem 1TP
Option (b),
Explanation of Solution
Given:
Distance traveled with rocket engine firing ( | Payload final velocity ( |
500 | 310 |
490 | 300 |
1020 | 450 |
505 | 312 |
Formula used:
The relation between the distance, speed and acceleration is,
The relation between force, mass and acceleration is,
Calculation:
Case 1:
Substituting the given values in equation (1), we get
Substituting the value in equation (2), we get.
Case 2:
Substituting the given values in equation (1), we get
Substituting the values in equation (2), we get.
Case 3:
Substituting the given values in equation (1), we get
Substituting the values in equation (2), we get.
Case 4:
Substituting the given values in equation (1), we get
Substituting the values in equation (2), we get.
The average force exerted on the payload is,
Conclusion:
Thus, the force exerted by the rocket engine is
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Chapter 7 Solutions
COLLEGE PHYSICS
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