contestada

A 150 g baseball is thrown toward home plate with a
speed of 30 m/s. The batter hits the ball directly back at the pitcher with a
speed of 40. m/s. What is the TOTAL INITAL MOMENTUM of the system?

Respuesta :

Eduard22sly

The initial momentum of the 150 g baseball thrown with a speed of 30 m/s is 4.5 Kgm/s

Data obtained from the question

  • Mass (m) = 150 g = 150 / 1000 = 0.15 Kg
  • Initial velocity (u) = 30 m/s
  • Final velocity (v) = 40 m/s
  • Initial momentum =?

How to determine the initial momentum

Momentum is defined as the product of mass and velocity i.e

Momentum = mass × velocity

With the above formula, we can obtain the initial momentum of the system as follow:

  • Mass (m) = 0.15 Kg
  • Initial velocity (u) = 30 m/s
  • Initial momentum =?

Initial momentum = mu

Initial momentum = 0.15 × 30

Initial momentum = 4.5 Kgm/s

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