Question

একটা বস্তুকে 49 m/s বেগে উপরের দিকে ছুঁড়ে দিলে কোন উচ্চতায় এর গতিশক্তি বিভব শক্তির এক চতুর্থাংশ হবে?
Please answer this question fast​

Answer 1

Height = 490 m.

• Due to its position, an object has the ability to store energy. For instance, when a demolition machine's heavy ball is held in an elevated position, it is storing energy. Potential energy is the name for this positional energy that has been stored. Similar to how a drawn bow can store energy due to its posture, There is no energy in the bow while it is in its normal position, or when not drawn. The bow can yet store energy when its position is changed from its normal equilibrium position because of its position. Potential energy is the name for this positional energy that has been stored. Potential energy is the energy of position that a thing has stored inside it.
• Motion is created by kinetic energy. Whether an object is moving vertically or horizontally, it contains kinetic energy. Kinetic energy can take many different forms, including vibrational (the energy resulting from vibrational motion), rotational (the energy resulting from rotational motion), and translational energy (the energy due to motion from one location to another).

Here, the velocity is given as, v = 49 m/s.

It is given that,

Kinetic energy is one-fourth of its potential energy.

Then we have,

$\frac{1}{2} mv^{2} =\frac{1}{4} (mgh)$

Or, $2v^{2} =gh$

Or, $h = \frac{2v^{2} }{9.8} =490 m.$

Hence, height = 490 m.

Learn more here

https://brainly.in/question/957984

#SPJ1