It will take the object <em>5.306 seconds </em>to come to rest.
<u>Given the following data:</u>
- Initial velocity = 52 m/s
- Acceleration = -9.8
To find how much time it will take the object to come to rest, we would use the first equation of motion;
Mathematically, the first equation of motion is calculated by using the formula;
<em>Time, t </em><em>=</em><em> 5.306 seconds.</em>
Therefore, it will take the object <em>5.306 seconds </em>to come to rest.
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<u>Note</u>: The final velocity (V) of the object would be zero (0) m/s when the object comes to rest.
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You see, during the day the ocean collects heat from the sun. So the air above the ocean get warm at night, but the rest of the air on the land gets cooler because water has the ability to collect energy from the Sun.
Answer:
(d) 2930 lbs
Explanation:
Given:
Force acting in the westerly direction is,
Force acting in the northerly direction is,
Now, as the two given directions are at right angles to each other, the angle between the two force vectors is 90 degrees.
So, when two vectors are at right angles, their resultant magnitude is given as:
Plug in the given values and solve for resultant 'R'. This gives,
Therefore, the magnitude of the resultant force upon the piling is 2930 lbs.
So, option (d) is correct.