tmk7250 tmk7250

06-12-2018
Physics

contestada

A roller coaster begins at the top of a hill. If it accelerates at the rate of 2 m/s2 and has a mass of 2000 kg, what net force is acting on it? (F=ma)

A. 0.001 N

B.0.5 N

C. 4000 N

D. 1000 N

Respuesta :

SonOfZeus SonOfZeus

06-12-2018

Answer: C. 4000 N

By using the formula F=ma we have:

a = 2m/s^2 and m = 2000 kg and so,

F=(2000kg)(2m/s^2)= 4000 N

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