Chapter 5: Problem 12
A rocket of initial mass 125 kg (including all the contents) has an engine that produces a constant vertical force (the \(thrust\)) of 1720 N. Inside this rocket, a 15.5-N electrical power supply rests on the floor. (a) Find the initial acceleration of the rocket. (b) When the rocket initially accelerates, how hard does the floor push on the power supply? (\(Hint:\) Start with a free- body diagram for the power supply.)
Short Answer
Step by step solution
Understanding Forces Acting on the Rocket
Calculate Weight of the Rocket
Determine Net Force and Acceleration of the Rocket
Free-Body Diagram of Power Supply
Calculate Normal Force on the Power Supply
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Key Concepts
These are the key concepts you need to understand to accurately answer the question.
Newton's Second Law
Free-Body Diagram
- Identify the object you're focusing on.
- Draw the object as a simple shape, like a box or a dot.
- Draw arrows representing all the forces acting on the object; the direction of each arrow shows the force's direction, and the arrow's length indicates the force's magnitude.
Gravitational Force
Normal Force
- Identifying the weight of the power supply.
- Adding the additional force due to the acceleration of the rocket (since both the rocket and power supply accelerate together).