The time interval will be given as 1 ≥ t ≥ √2.
Expression in maths is defined as the collection of the numbers variables and functions by using signs like addition, subtraction, multiplication and division.
Given that:-
The height of a stuntperson jumping off a building that is 20 m high is modelled by the equation h = 20 – 5t², where t is the time in seconds. a high-speed camera is ready to film the person between 15 m and 10 m above the ground.
The time interval will be calculated by putting the value of h from 15 to 10 meters.
put the value of h = 15 meters.
h = 20 - 5t²
15 = 20 - 5t²
5t² = 5
t = 1
Now put h = 10 meters.
h = 20 - 5t²
10 = 20 - 5t²
5t² = 10
t = √2
Therefore the time interval will be given as 1 ≥ t ≥ √2.
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