jennatmis jennatmis

23-08-2014
Physics

contestada

What is the displacement after 6 seconds when a car is moving at 12m/s and coasts up a hill with a uniform aacceleration of -1.6 m/s^2

Respuesta :

23-08-2014

The kinematic formula using displacement, time, initial velocity, and acceleration:
x = v t+.5 a t^2
x= (12m/s)(6s) + .5(-1.6m/s^2)(6s)^2
x= 72m - 28.8m
x = 43.2 m

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