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29-09-2017
Chemistry

contestada

What is the acceleration of a ball traveling horizontally with an initial velocity of 20 meters/second and, 2.0 seconds later, a velocity of 30 meters/second?

Respuesta :

29-09-2017

The acceleration of the ball is 5 m/s^2. The formula is: Vf = Vi + at
Vf = final velocity
Vi = initial velocity
a = acceleration
t = time

Substituting the values gives:
30 = 20 + a(2)= 5m/s^2

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