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3 years ago

12

a boy on his bike has a force of 5.6 n and is accelerating at 12/m/s/s with a speed of 17m/s what is the kinetic energy of the b

oy?

1 answer:

nadya68 [22]3 years ago

3 0

Answer:

67.4 J

Step-by-step explanation:

F = ma

5.6 = m(12)

mass of the boy = 7/15 kg

KE = (1/2)mv^2

KE = (1/2)(7/15)(17^2)

KE = 67.4 J (3 sig. fig.)

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3 years ago

A rectangle has dimensions 7 ft x 12 ft. Which of the dimensions describe a rectangle that is similar to this rectangle?

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3 years ago

68 * 27 - 81 + ? = 600

tankabanditka [31]

The missing term is -1155.

Step-by-step explanation:

Given expression is

68 * 27 - 81 + ? = 600

Let the missing term be x

$68*27-81+x=600\\1836-81+x=600\\1755+x=600$

Subtracting 1755 from both sides

$1755-1755+x=600-1755\\x=-1155$

Therefore,

The missing term is -1155.

Keywords: multiplication, addition

Learn more about multiplication at:

#LearnwithBrainly

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4 years ago

Solve the following factorize and the en- equation of quadrate equation X² + 5x + 7 x = 0

nlexa [21]

Answer:

{-12,0}

Step-by-step explanation:

first to solve this can collect like terms and add

X² +12x=0

and solve it by factorization method

X² +12x=0

x(x+12)=0

it means x multiplied by x = X² then x multiplied by 12 = 12x

so this means x or (x+12) equals to zero

x=0 and (x+12)=0

x+12=0

x=-12

so the solution set is {-12,0}

but can also be done by formula method

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2 years ago

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C. 0

D. 1/11

Hope this helps!

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3 years ago