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WITCHER [35]
3 years ago
10

If Luke pushes his sister in a wagon down the driveway that is 14 meters long and it takes 22 Newtons of force, how much work di

d he do?
Mathematics
1 answer:
erica [24]3 years ago
3 0

Hello!

The answer is:

Luke did a work of 308N.m or 308 Joules.

<h2>Why?</h2>

When a force is applied on a object making it to move covering a distance we call it "work". The movement caused by the force, will follow the same direction that the force.

We can calculate the work done by using the following equation:

Work=Force*distance*Cos(\alpha)

Where,

Work is the transferred energy.

Force, is the force applied to the object.

Distance, is the distance covered due to the applied force.

α, is the angle at the work is done.

We are given the following information to calculate the work done:

Force=22N\\Distance=14m

So, substituting the given information into the equation to calculate work, we have:

Work=Force*distance\\Work=22N*14m=308N.m

Hence, we have that Luke did a work of 308N.m or 308 Jouls.

Have a nice day!

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52 divided by what is 30
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Answer:

x = 26/15

Step-by-step explanation:

is means equals

52 / x = 30

Multiply each side by x

52 = 30x

Divide each side by 30

52/30 = x

26/15 = x

6 0
3 years ago
Determine if the set of numbers create a Pythagorean triple. 2.1, 7.2, and 7.5
Minchanka [31]

Answer:

Yes, the set of numbers create a Pythagorean triple

Step-by-step explanation:

we know that

If a set of numbers create a Pythagorean triple, then the set of numbers must satisfy the Pythagorean Theorem

c^2=a^2+b^2

where

c is the greater side

a and b are the legs (perpendicular sides)

we have

c=7.5\\a=2.1\\b=7.2

substitute

7.5^2=2.1^2+7.2^2

56.25=4.41+51.84

56.25=56.25 ----> is true

therefore

Yes, the set of numbers create a Pythagorean triple

8 0
2 years ago
Solve by using the elimination method.
crimeas [40]

a = lilies

13 - a = tulips

We have: 1.25a + 0.90(13 - a) = 14.85

              => 1.25a + 11.7 -0.90a = 14.85

              => 0.35a                      = 14.85 - 11.7 = 3.15

              => a                              = 3.15 ÷ 0.35 = 9

=> She bought 9 lilies and 4 tulips

             

4 0
3 years ago
A 48 ounce box of cornflakes cost 4.59? I’m very confused =(
Novay_Z [31]

Answer:

The 72 ounce box

Step-by-step explanation:

the cost per ounce is cheaper.

8 0
2 years ago
What is the area of a rectangle with length of 1/12 foot and the width 1/4 foot
baherus [9]

Solution Steps:

1/12 x 3/12

3/144

Simplify = 1/48

Hopefully this is correct

7 0
3 years ago
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