Answer:
150
Explanation:
P=F/A
10=15/A
10*15=15/A*15
150=A
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The kinetic energy is not conserved because the chemical potential energy initially present in the explosive is converted into kinetic energy of the pieces of the bomb
<h3>What is kinetic energy?</h3>
- Kinetic energy is the term used in physics to describe the energy an object has as a result of motion. The effort needed to move a mass-determined body from rest to the stated velocity is how it is defined.
- The body holds onto the kinetic energy it acquired during its acceleration until its speed changes.
- The body exerts the same amount of effort when slowing down from its current pace to a condition of rest.
- Formally, a kinetic energy is any term that includes a derivative with respect to time in the Lagrangian of a system.
- This is a fair approximation in relativistic mechanics only when v is considerably slower than the speed of light.
To know more about kinetic energy, refer:
brainly.com/question/114210
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Given :
Brandon hits a golf ball with an initial velocity of 30 m/s at an angle of 30 above the horizontal.
To Find :
How long is it in the air.
Solution :
We know, the formula of time of flight is :
Therefore, the ball is in air for 3.06 seconds.
