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lys-0071 [83]
3 years ago
14

You drive in a straight line at 24.0 m/s for 8.0 miles, then at 30.0 m/s for another 8.0 miles. What is the average velocity?

Physics
1 answer:
Mila [183]3 years ago
7 0
8 miles = 12874.8m 
Total distance = 16 miles = 25749.5m 
 time = distance/velocity
 First instance, t =12874.8/24
  = 536.45 
 Second instance, t = 12874.8/30
  = 429.16 
 Total time = 536.45 + 429.16 = 965.61 
 Average velocity = Total distance / Total time
  = 25749.5/965.61
  = 26.67 m/s
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Explanation:

In the given answer-

<u>Motion</u> is defined as - the change in the movement or position of any object  or body.

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Answer:

0.001 s

Explanation:

The force applied on an object is equal to the rate of change of momentum of the object:

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The change in momentum can be written as

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So the original equation can be written as

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m = 5 kg is the mass of the fist

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v = 0 is the final velocity

F = -45,000 N is the force applied (negative because its direction is opposite to the motion)

Therefore, we can re-arrange the equation to solve for the time:

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