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Module 1 explored the working principles of safety devices in the context of the following questions:
- What is impulse?
- How
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maism- Maulsm."
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Read One problem solving approach in Physics is the GRASP model found on
pages 867 868 in the textbook. Note the important of clearly identifying direction with
vector quantities such as momentum.
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Using GRASP - E
Ff
3
3 Example Problem 3
5
An airplane has a momentum of 8.3 x 107 kg-m/s [N]. If the
3 airplane is ying at a velocity of 990 kah [N], determine its
3 mass.
3 Given
3 m Thinkstock
3 =8.3x107kg-[N]
3 =+8.3x107kg-
V: 990 km/h [N]
3
km 1000 m 1h
_. =+
Guidelines for Significant Digits, Manipulation of Data and Rounding for Science
Diploma Examinations
Significant Digits (measured values)
1.
For all non-logarithmic values, regardless of decimal position, any of the digits 1 to 9 is a significant digit;