6. Exercises
Förberedande Mekanik
(Skillnad mellan versioner)
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| + | ===Exercise 6.3=== | ||
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| + | The diagram shows a velocity-time graph for a lift. | ||
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| + | [[Image:E6.3.GIF]] | ||
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| + | a) Find the total distance travelled by the lift. | ||
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| + | b) Calculate the acceleration of the lift during the last 2 seconds. | ||
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| + | c) At what times is the speed of the lift 1 <math>\text{m}{{\text{s}}^{-1}}</math>? | ||
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| + | </div>{{#NAVCONTENT:Answer a|Answer 6.3a|Answer b|Answer 6.3b|Answer c|Answer 6.3c|Solution a|Solution 6.3a|Solution b|Solution 6.3b|Solution c|Solution 6.3c}} | ||
Versionen från 11 september 2009 kl. 13.12
| Theory | Exercises |
Exercise 6.1
The graph shows how the velocity of a van changes during a short journey. Find the distance travelled by the van.
Answer
Hämtar...
Solution
Exercise 6.2
The graph below shows how the velocity of a train changes as it travels along a straight railway line.
a) Find the total distance travelled by the train in the 180 seconds..
b) Find the acceleration of the train on the first stage of the motion.
Exercise 6.3
The diagram shows a velocity-time graph for a lift.
a) Find the total distance travelled by the lift.
b) Calculate the acceleration of the lift during the last 2 seconds.
c) At what times is the speed of the lift 1 \displaystyle \text{m}{{\text{s}}^{-1}}?
Answer a
Answer b
Answer c
Solution a
Solution b
Solution c
