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Aloiza [94]
3 years ago
14

A train moves from rest to a speed at 25m/s in 30.0 seconds. What is it’s acceleration?

Physics
1 answer:
sasho [114]3 years ago
4 0

Answer:

25/30 = 5/6 m/s^2 5/6 meters per second squared

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A ball is thrown vertically upwards with a velocity of 9.8 m/s. Its velocity after 1 second will be
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\LARGE{ \underline{\underline{ \purple{ \bf{Required \: answer:}}}}}

GiveN:

  • Initial velocity = 9.8 m/s²
  • Accleration due to gravity = -9.8 m/s²
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To FinD:

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Step-by-step Explanation:

Using the first Equation of motion,

⇒ v = u + gt

⇒ v = 9.8 + -9.8(1)

⇒ v = 0 m/s

The final velocity is hence <u>0</u><u> </u><u>m</u><u>/</u><u>s</u><u>.</u>

<h3>Note:</h3>

  • While solving questions of under gravity motions using equations of motion, remember the sign convection to avoid mistakes.
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