Mechanics: 1-Dimensional Kinematics
1-D Kinematics: Audio Guided Solution
Problem 28:
During his recent skydiving adventure, Luke Autbeloe had reached a terminal speed of 10.4 m/s as he approached the ground with his parachute. During an attempt to snap one last photo with his camera, Luke fumbled it from a height of 52.1 m above the ground.
a. Determine the speed with which the camera hits the ground.
b. Determine the time for the camera to free fall from Luke's hands to the ground.
a. Determine the speed with which the camera hits the ground.
b. Determine the time for the camera to free fall from Luke's hands to the ground.
Audio Guided Solution
Habits of an Effective Problem Solver
- Read the problem carefully and develop a mental picture of the physical situation. If necessary, sketch a simple diagram of the physical situation to help you visualize it.
- Identify the known and unknown quantities in an organized manner. Equate given values to the symbols used to represent the corresponding quantity - e.g., vo = 0 m/s; a = 4.2 m/s/s; vf = 22.9 m/s; d = ???.
- Use physics formulas and conceptual reasoning to plot a strategy for solving for the unknown quantity.
- Identify the appropriate formula(s) to use.
- Perform substitutions and algebraic manipulations in order to solve for the unknown quantity.
Read About It!
Get more information on the topic of Kinematics at The Physics Classroom Tutorial.
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