1. A flare is launched in the air and its height in metres after t seconds is shown in the table at the right. time (s) height (m) a) Calculate the average velocity between 1 and 4 seconds. 0. 45 80 105 120 125 120 105 4. b) Estimate the instantaneous velocity of the flare at 6 seconds. 6. 7.

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1. A flare is launched in the air and its height in metres after t seconds is shown in the
table at the right.
time (s) height (m)
a) Calculate the average velocity between 1 and 4 seconds.
45
80
2
3
4
105
120
125
b) Estimate the instantaneous velocity of the flare at 6
seconds.
120
7
105
8
80
9.
10
45
c) Estimate the instantaneous velocity of the flare at 5 seconds. What does this tell you
about the flare at 5 seconds?
Transcribed Image Text:1. A flare is launched in the air and its height in metres after t seconds is shown in the table at the right. time (s) height (m) a) Calculate the average velocity between 1 and 4 seconds. 45 80 2 3 4 105 120 125 b) Estimate the instantaneous velocity of the flare at 6 seconds. 120 7 105 8 80 9. 10 45 c) Estimate the instantaneous velocity of the flare at 5 seconds. What does this tell you about the flare at 5 seconds?
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