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a man pulling an empty wagon causes it to accelerate at 1.4 m/s2 what will the acceleration be if he pulls with the same force when the wagon contains a child whose mass is three times that of the wagon? express your answer using two significant figures.

Respuesta :

The acceleration will be 0.35 m/s^2 if he pulls with the same force when the wagon contains a child weighing 3 times of wagon.

What is acceleration and how the acceleration is calculated out to be so?

  1. Acceleration is a quantity which represents the force applied per unit mass of a substance .
  2. Here a man is pulling an empty wagon to accelerate at 1.4 m/s^2 and the question is asked the acceleration if pulled with same force.
  3. But the wagon contains a child whose mass is three times of the wagon .
  4. Considering 'M' the mass of wagon , 3M would be the mass of child and total mass = 4M.
  5. The pulling force on wagon would be 4Ma, since the force are equal , equating 1.4 M =4Ma , this implies a = 0.35m/s^2.
  6. So the acceleration with which the wagon is pulled is 0.35m/s^2 knowing the mass of child is three times the mass of wagon.

To know more about acceleration visit:

https://brainly.com/question/12550364

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