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kow [346]
3 years ago
7

What is the kinetic energy that the device contains immediately before it hits the ground? [KE = /2*m*v-]

Physics
1 answer:
n200080 [17]3 years ago
6 0

Answer:

Kinetic energy : "It is the energy possessed by body by virtue of its motion" .

Explanation:

The mechanical energy is the energy that a body has due to its motion or position .

It is of two types :

  • Potential energy
  • Kinetic energy

Potential energy

"It is the energy that a body has due to its position or state" .

It is given by P.E=mgh

Kinetic energy

"It is the energy that a body has due to its motion" .

The formula is : K.E=1/2mv².

For example

  • A ball is placed on table .
  • At that time it has potential energy .
  • Now,lets say that we push it and it drops down .
  • On doing this ,the potential energy of ball gets converted into kinetic energy(because it comes in motion )  and as soon as it touches the ground it stops and its kinetic energy gets converted into Potential energy again .
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<h3>How to calculate deceleration ?</h3>

While acceleration is motion in which an object's speed varies every second, deceleration is motion that causes an object to slow down.

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