Answer:
Time - taken = 2.5 s
deceleration= -8 m/s²
Solution:
Given:
speed, v = 8 m/s
distance, d = 20m
To Find:
deacceleration = ?
As we know speed is defined as
v = d/t
plugging in the values
t = 20/ 8
t = 2.5s
Now from deceleration formula
a = - v/ t
a = - 20/ 2.5
a = - 8 m/s²
Thus, the time taken and acceleration is 2.5 s and -8 m/s²
respectively.
Learn more about deceleration here:
brainly.com/question/13354629
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Answer: B: It can be made out of wire
Explanation: i just had this question and put this answer and gotten it right:)
Mass and velocity I think
Answer:
- 0.75 m
Explanation:
Using the graph as a reference point, the question is ;
What is the displacement of the elephant between 8s and 24s?
The displacement will be the sum of the slope of the graph within the given time.
From time 8s to 16s, the slope m will be;
Slope = (15 - 6) / (16 - 8)
Slope = 9 / 8
From time 16s to 24s
Slope = (15 - 0) / ( 16 - 24)
Slope = -15 / 8
Displacement = 9/8 - 15/8
Displacement = -6/8
Displacement = - 0.75 m
