42.0 kg mass is moving with velocity +68.0 m/s when it experiences an acceleration of -7.00 m/s².   A) How long will it take for the mass to stop?     b) How far does it travel during this time?  C) If the acceleration persists, how much more time after it stops is needed for the mass to reach 100.0 m/s? d) What net force causes that acceleration?

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A 42.0 kg mass is moving with velocity +68.0 m/s when it experiences an acceleration of -7.00 m/s².

 

A) How long will it take for the mass to stop?

 

 

b) How far does it travel during this time? 

C) If the acceleration persists, how much more time after it stops is needed for the mass to reach 100.0 m/s?

d) What net force causes that acceleration? 

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