Asked by Clara

A young girl with mass 39.5 kg is sliding on a horizontal, frictionless surface with an initial momentum that is due east and that has magnitude 85.5 kg⋅m/s . Starting at 0 s , a net force with magnitude F=( 8.35 N/s )t and direction due west is applied to the girl. A) At what value of t does the girl have a westward momentum of magnitude 64.5 kg⋅m/s ? B)How much work has been done on the girl by the force in the time interval from t= 0 s to the time calculated in part A? C) What is the magnitude of the acceleration of the girl at the time calculated in part A?
Answered by bobpursley
show me what you can do with this.
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