A speedboat travels in a straight line and increases in speed uniformly from v i = 20.0 m/s to v f = 30.0 m/s in a displacement Δ x of 200 m. We wish to find the time interval required for the boat to move through this displacement. (a) Draw a coordinate system for this situation. (b) What analysis model is most appropriate for describing this situation? (c) From the analysis model, what equation is most appropriate for finding the acceleration of the speedboat? (d) Solve the equation selected in part (c) symbolically for the boat’s acceleration in terms of v i , v f , and Δ x. (e) Substitute numerical values to obtain the acceleration numerically. (f) Find the time interval mentioned above.
A speedboat travels in a straight line and increases in speed uniformly from v i = 20.0 m/s to v f = 30.0 m/s in a displacement Δ x of 200 m. We wish to find the time interval required for the boat to move through this displacement. (a) Draw a coordinate system for this situation. (b) What analysis model is most appropriate for describing this situation? (c) From the analysis model, what equation is most appropriate for finding the acceleration of the speedboat? (d) Solve the equation selected in part (c) symbolically for the boat’s acceleration in terms of v i , v f , and Δ x. (e) Substitute numerical values to obtain the acceleration numerically. (f) Find the time interval mentioned above.
Solution Summary: The author explains that coordinate systems are used to uniquely determine the location of a point in space.
A speedboat travels in a straight line and increases in speed uniformly from vi = 20.0 m/s to vf = 30.0 m/s in a displacement Δx of 200 m. We wish to find the time interval required for the boat to move through this displacement. (a) Draw a coordinate system for this situation. (b) What analysis model is most appropriate for describing this situation? (c) From the analysis model, what equation is most appropriate for finding the acceleration of the speedboat? (d) Solve the equation selected in part (c) symbolically for the boat’s acceleration in terms of vi, vf, and Δx. (e) Substitute numerical values to obtain the acceleration numerically. (f) Find the time interval mentioned above.
What is the equivalent resistance between points A
and B of the network shown in the figure?
A •
12
B
4.0
6.0 Ω
8.0 Ω
According to the provided information answer the question accorrding to grade 11 physics Jerry has decided to give up his part-time job for a new career, cat-burglar! Jerry loves the idea of dressing up like a cat all day and of course the chance of meeting Cat Woman! On Jerry's first "job" he figures out his escape plan. He travels 3.0 km south for 15 minutes and then 8.0 km west for 1.5 hours before reaching his house. Draw a sketch diagram of the path he took with all the appropriate labels.
Please solve and answer all parts of the question correctly please. Thank you!!
Chapter 2 Solutions
Principles of Physics: A Calculus-Based Text, Hybrid (with Enhanced WebAssign Printed Access Card)
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