02-01-2017
Physics

contestada

What force do the brakes exert on the cart?

What force do the brakes exert on the cart class=

Respuesta :

02-01-2017

Newton's second law of motion:

   Force = (mass) x (acceleration)

   = (100 kg) x (-5 m/s²)

   = -500 Newtons .

I made the acceleration negative because the cart is slowing down.
The force came out negative because it's in the direction opposite
to the cart's motion.

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