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lord [1]
3 years ago
9

Suppose a moving object has a kinetic energy of 100 J. What will the object's kinetic

Physics
1 answer:
Darina [25.2K]3 years ago
4 0

The kinetic energy will quadruple

Explanation:

The kinetic energy of an object is the energy possessed by the object due to its motion. It is given by:

K=\frac{1}{2}mv^2

where

m is the mass of the object

v is its speed

From the equation, we notice that the kinetic energy is:

  • Directly proportional to the mass
  • Proportional to the square of the speed

In this problem, the initial kinetic energy of the object is

K = 100 J

Later, the speed of the object is doubled:

v' = 2v

Therefore, the new kinetic energy will be

K'=\frac{1}{2}m(v')^2=\frac{1}{2}m(2v)^2=4(\frac{1}{2}mv^2)=4K

So, we see that the kinetic energy will quadruple.

Learn more about kinetic energy:

brainly.com/question/6536722

#LearnwithBrainly

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During a normal reaction to a stressful event, muscles are moved to their maximum capacity, and sensitivity is
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Answer:

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Explanation:

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What net external force is required to give a 25 kg suitcase an acceleration of 2.2 m/s2 to the right?
lapo4ka [179]

Answer:

there are two way to get mate  and i gave them sepaert explation

Explanation:

55

N

Explanation:

Using Newton's second law of motion:

F

=

m

a

Force=mass

×

acceleration

F

=

25

×

2.2

F

=

55

N

So 55 Newtons are needed.

Answer link

Nam D.

Apr 6, 2018

55

N

Explanation:

We use Newton's second law of motion here, which states that,

F

=

m

a

m

is the mass of the object in kilograms

a

is the acceleration of the object in meters per second

F

=

25

kg

⋅

2.2

m/s

2

=

55

N

3 0
3 years ago
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