PLEASE HELP!!!!!!! A student is trying to demonstrate static electricity, so they rub two identical balloons with a neutral rabb
1 answer:
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Answer:
The frictional force 6.446 N
The acceleration of the block a = 6.04
Explanation:
Mass of the block = 3.9 kg
°
= 0.22
(a). The frictional force is given by
3.9 × 9.81 ×
29.3 N
Therefore the frictional force
0.22 × 29.3
6.446 N
(b). Block acceleration is given by
F = 30 N
= 6.446 N
= 30 - 6.446
= 23.554 N
The net force acting on the block is given by
23.554 = 3.9 × a
a = 6.04
This is the acceleration of the block.
Clara is jogging faster during part C of her run.
<h3 /><h3>What is average velocity?</h3>The average velocity of an object is the change in the object's displacement per change in the time of motion.
From the graph of Clara's motion, the average velocity of Clara in part A is calculated as follows;
The average velocity of Clara in part C is calculated as follows;
Thus, we can conclude that Clara is jogging faster during part C of her run.
Learn more about average velocity here: brainly.com/question/6504879
