avaiisamorgan avaiisamorgan

02-03-2019
Physics

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a woman traveling at 70m/s, applies the break on her car and stops in the time of 2seconds. what is her deceleration?

Respuesta :

Odeenaka Odeenaka

02-03-2019

From the laws of motion:

[tex]v= u + at[/tex]

Therefore:

[tex]0 = 70 + (2 \times a)[/tex]

a in this case = deceleration

[tex]0 = 70 + 2a \\ \\ - 70 = 2a[/tex]

[tex]a = - 35m {s}^{ - 2} [/tex]

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