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Manipal MET2010PhysicsMotion in One Dimension

A body of mass 10 kg is moving with a constant velocity of 10 ~m / s . When a constant force acts for 4 s on it, it moves with a velocity 2 ~m / s in the opposite direction. The acceleration produced in it is

Options

  1. A3 ~m / s ^2
  2. B-3 ~m / s ^2
  3. C0.3 ~m / s ^2
  4. D0.03 ~m / s ^2

Correct answer

B. -3 ~m / s ^2

Step-by-step solution

According to equation of motion v=u+a t -2=10+a 4 a=-3 ~m / s ^2

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