Solution 6P Step 1: The cyclist is pedaling downhill. Thus he will gain kinetic energy, but will lose potential energy (with decreasing height). Increase in kinetic energy is balanced by decrease in potential energy. Mathematically, Increase in kinetic energy = Decrease in potential energy Step 2: Since answer options are given in metre, so we shall have to convert 15 km/h to m/s. Speed, v = 15 km/h = 15× 1000m ( since, 1 km = 1000 m and 1 h = 3600 s) 3600 s = 150m 36 s m = 4.166 s We know that acceleration due to gravity, g = 9.8 2 s
Textbook: Physics: Principles with Applications
Author: Douglas C. Giancoli
Physics: Principles with Applications was written by and is associated to the ISBN: 9780130606204. This full solution covers the following key subjects: Energy, Cool, Hill, Thermal, down. This expansive textbook survival guide covers 35 chapters, and 3914 solutions. This textbook survival guide was created for the textbook: Physics: Principles with Applications, edition: 6. The answer to “The components of a vector can be written (Vx, Vy, Vz). What are the components and length of a vector which is the sum of the two vectors, and whose components are (8.0, ?3.7, 0.0) and (3.9, ?8.1, ?4.4)?” is broken down into a number of easy to follow steps, and 39 words. The full step-by-step solution to problem: 6P from chapter: 3 was answered by , our top Physics solution expert on 03/03/17, 03:53PM. Since the solution to 6P from 3 chapter was answered, more than 308 students have viewed the full step-by-step answer.