You use the second equation vf=vi+at

It is released from rest so vi=o, we know vf = 63.7 and g = 9.8

We now have 63.7 = 9.8 t

So t = 63.7/9.8

It therefore takes 6.5 seconds

Carly H.

asked • 06/05/20** ****a = vf – vi vf = vi + at t = vf-vi**

** t a **

My teacher gave me these formulas and im not sure which one it is or even how to do this.

Find the Average acceleration.

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You use the second equation vf=vi+at

It is released from rest so vi=o, we know vf = 63.7 and g = 9.8

We now have 63.7 = 9.8 t

So t = 63.7/9.8

It therefore takes 6.5 seconds

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