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Use the formula $v = u + at$ to find the final velocity, when - the initial velocity is 8 m/s - the acceleration is 3 m/s² - the time is 5 seconds. - OCR - GCSE Maths - Question 12 - 2018 - Paper 1

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Question 12

Use-the-formula--$v-=-u-+-at$--to-find-the-final-velocity,-when----the-initial-velocity-is-8-m/s---the-acceleration-is-3-m/s²---the-time-is-5-seconds.-OCR-GCSE Maths-Question 12-2018-Paper 1.png

Use the formula $v = u + at$ to find the final velocity, when - the initial velocity is 8 m/s - the acceleration is 3 m/s² - the time is 5 seconds.

Worked Solution & Example Answer:Use the formula $v = u + at$ to find the final velocity, when - the initial velocity is 8 m/s - the acceleration is 3 m/s² - the time is 5 seconds. - OCR - GCSE Maths - Question 12 - 2018 - Paper 1

Step 1

the initial velocity is 8 m/s

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Answer

Given:

  • Initial Velocity, u=8 m/su = 8 \, \text{m/s}
  • Acceleration, a=3 m/s2a = 3 \, \text{m/s}^2
  • Time, t=5 st = 5 \, \text{s}

Step 2

the acceleration is 3 m/s²

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104 rated

Answer

To find the final velocity vv, we use the formula:

v=u+atv = u + at

Substituting the given values:

v=8+(3×5)v = 8 + (3 \times 5)

Step 3

the time is 5 seconds.

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101 rated

Answer

Calculating further:

v=8+15=23 m/sv = 8 + 15 = 23 \, \text{m/s}

Thus, the final velocity is 23 m/s23 \, \text{m/s}.

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