Answer: = . /
Explanation:
The acceleration is
= − 0
In our case, the initial velocity has minus sign.
Thus,
=
− (−0)
=
+ 0
Substituting
0 =
2
(
+
0
) −
=
2
+
0
2
−
Thus,
0
2
=
2
−
So,
0 = −
= 8.62 −
12.9
8.25 = 7.06 m/s
Answer: = . /
Answer:
jwhgrewhuejqiwmkosjcdihwbfuqjiwdkmojcshidvwuf hiiii againnnn :)) good luck
Answer:
A. 5 m/s
Explanation:
From the graph, for the first 2 seconds, the graph is a straight line meaning that the slope is a constant.
Average speed of an object is the rate of change of position. Here, the position of the object changes from 0 m to 10 m for a time interval of 2 seconds.
The change in position (
) and time interval (
) are given as:
Therefore, the average speed (
) is given as the ratio of the total change in position and the time interval for the change.
Hence, the average speed is 5 m/s.
Answer:
Part a)
Part b)
Explanation:
Part a)
In order to have same range for same initial speed we can say
so after comparing above we will have
so we have
Part b)
Time of flight for the first ball is given as
Now for other angle of projection time is given as
So here the time lag between two is given as
Answer:
What was your hypothesis? According to your data, do you think your hypothesis was correct? (Be sure to refer to your data when answering this question.)
Summarize any difficulties or problems you had in performing the experiment that might have affected the results. Describe how you might change the procedure to avoid these problems.
Be sure to submit your data along with your paragraph.
Part 2
What effect did the temperature have on the viscosity of the honey? (Be sure to refer to your data when answering this question.)
Give at least two practical examples where knowledge of viscosity is important.
Essay Question:
Write a summary paragraph for each part discussing this experiment and the results. Use the following questions and topics to help guide the content of your paragraph.
Part 1
What was your hypothesis? According to your data, do you think your hypothesis was correct? (Be sure to refer to your data when answering this question.)
Summarize any difficulties or problems you had in performing the experiment that might have affected the results. Describe how you might change the procedure to avoid these problems.
Be sure to submit your data along with your paragraph.
Part 2
What effect did the temperature have on the viscosity of the honey? (Be sure to refer to your data when answering this question.)
Give at least two practical examples where knowledge of viscosity is important.
