The time taken by the runner to do the work is 1.42 seconds.
Given the data in the question;
- Work done;

- Power;

- Time elapsed;

<h3>Power</h3>
Power can be simply referred to as the quantity of energy transferred per unit time.
It is expressed as;

Where W is work done and t is time elapsed.
To determine the time it took the runner to do the work, we substitute our given values into the expression above.

Therefore, the time taken by the runner to do the work is 1.42 seconds.
Learn more about Power and Work: brainly.com/question/2962104
An object thats NEGATIVELY charged has more electrons than protons, An object thats POSITIVELY charged has less electrons than protons, An object that NOT charged has the same number of electrons and protons.
1 Electrical Potential Energy, separating two charged plates will store energy as the plates want to return to their original position.
<span>2 Spring or Elastic can be stretched to store energy as it wants to return to rest </span>
<span>3 Gravitational energy is stored by moving something (ball or pendulum are both examples of this) against a gravity gradient (lifting an object) that wants to fall back down. </span>
When the kinetic energy is transformed into another for of energy during the collision or impact
Answer:
nothing will happen the cart will be broken or as it is