griseldacarreon griseldacarreon
  • 13-01-2019
  • Physics
contestada

A 7kg bowling ball is resting on the counter. How much force does the bowling ball have on the counter.

Respuesta :

AL2006
AL2006 AL2006
  • 14-01-2019

That "force" is what scientists and dieticians call the "weight" of the ball.

Weight = (mass) x (acceleration of gravity)

On or near the Earth's surface, the acceleration of gravity is 9.8 m/s² .

Weight of the ball = (7 kg) x (9.8 m/s²)

Weight of the ball = 68.6 kg-m/s²

The unit " kg-m/s² " is called "Newton".

Weight of the ball = 68.6 Newtons

(that's about 15.4 pounds)

= = = = = = = = = =

Note:  We don't usually talk about it, but the counter is also pushing   UP on the ball, with exactly the same amount of force.

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