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A car moving at 10 m/s accelerates uniformly and covers 180m in 10s. Calculate its acceleration and final velocity.

Physics

ScanSolve AI Answer

Step-by-step solution

3 steps
  1. Identify the given values and the formulas needed.

    Given:
    Initial velocity, u=10 m/su = 10 \, \text{m/s}
    Distance, s=180 ms = 180 \, \text{m}
    Time, t=10 st = 10 \, \text{s}

    We need to find the acceleration (aa) and final velocity (vv).
    We will use the kinematic equations:

    1. s=ut+12at2s = ut + \frac{1}{2}at^2
    2. v=u+atv = u + at
  2. Calculate the acceleration (aa) using the first kinematic equation.

    s=ut+12at2s = ut + \frac{1}{2}at^2

    Substitute the given values:

    180 m=(10 m/s)(10 s)+12a(10 s)2180 \, \text{m} = (10 \, \text{m/s})(10 \, \text{s}) + \frac{1}{2}a(10 \, \text{s})^2 180=100+12a(100)180 = 100 + \frac{1}{2}a(100) 180=100+50a180 = 100 + 50a

    Subtract 100 from both sides:

    180−100=50a180 - 100 = 50a 80=50a80 = 50a

    Divide by 50 to find aa:

    a=8050a = \frac{80}{50} a=1.6 m/s2a = 1.6 \, \text{m/s}^2
  3. Calculate the final velocity (vv) using the second kinematic equation.

    v=u+atv = u + at

    Substitute the initial velocity (uu), acceleration (aa), and time (tt):

    v=10 m/s+(1.6 m/s2)(10 s)v = 10 \, \text{m/s} + (1.6 \, \text{m/s}^2)(10 \, \text{s}) v=10+16v = 10 + 16 v=26 m/sv = 26 \, \text{m/s}

    The acceleration is 1.6 m/s2\boxed{1.6 \, \text{m/s}^2} and the final velocity is 26 m/s\boxed{26 \, \text{m/s}}.

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