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Umnica [9.8K]
3 years ago
15

A 1400 kilogram car is moving at a speed of 25 m/s. How much kinetic energy does the car have?

Computers and Technology
2 answers:
insens350 [35]3 years ago
5 0

Kinetic energy=1/2mvsquare

1/2 x 1400 x 25 x25

Therefore kinetic energy= 437500Joules

Over [174]3 years ago
4 0

Answer:

9567.333

Explanation:

Taking gravity into consideration, we can calculate all this by a formula:

f1 = m*g = 1400*9.81 = 13734 N.

Just like this we can calculate the centrifugal force using the similar formula:

f2 = m*(v∧2)/r = 1400*(25∧2)/210 = 4166.67 N

Therfore the final answer can be calculated as:

f1-f2 = 13734 - 4166.67 = 9567.333

Goodluck, i hope this helps.

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numOfStudents = int(input('How many students: '))

names = []

aver = []

grade =[]

while numOfStudents > 0:

   studentName = input('Enter students name: ')

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   a = gradeAverage()

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for name in names:

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                   print('%s : Average =  %d  Letter Grade:  %s \n' %(name, score, letter))

                   break

Explanation:

The programming language used is python.

Two functions were created, the first function gradeAverage() was used to calculate the average values of the scores.

The second function lettergrade(a) was used to get the letter grade i.e(A, A-, C, D, e.t.c.) and it takes its argument from the average.

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Hope I helped a little:)

Have a nice day!!

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