Dear Student Vaverage=Vinitial+Vfinal220 = Vinitial+252Vinitial+25=40Vinitial= 15 m/sTime interval =DistanceAverage Velocity=10020 = 5s Acceleration = Vfinal-Vinitialt=25-155=2 m/s2 Regards

Physics numerical 9

Dear Student

V_{a v e r a g e} = \frac{V_{i n i t i a l} + V_{f i n a l}}{2} 20 = \frac{V_{i n i t i a l} + 25}{2} V_{i n i t i a l} + 25 = 40 V_{i n i t i a l} = 15 m / s T i m e i n t e r v a l = \frac{D i s \tan c e}{A v e r a g e V e l o c i t y} = \frac{100}{20} = 5 s . A c c e l e r a t i o n = \frac{V_{f i n a l} - V_{i n i t i a l}}{t} = \frac{25 - 15}{5} = 2 m / s^{2}

Regards

-3

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