Chemistry
20.08.2020 22:46
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Solved by an expert
A bicycle s brakes apply 299 N of frictional force to the wheels as the bike moves
"A bicycle's brakes apply 299 N of frictional force to the wheels as the bike moves 24 m
for 3.0 s. How much WORK do the brakes do?"
Show Answers
tez87
4,8(67 marks)
0.62 N
Explanation:
first of all: 3.0 s = 0.05 m
Let ? be the work that brakes do at 3.0s
24 m > 299 N
0.05 m >?
? = (0.05 m x 299 N)/ 24
? = (14.95)/ 24
? = 0.622 N
abbymoses3
4,8(86 marks)
it is the measure of the extent of reduction in a chemical substance
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