Answers

2015-08-02T20:21:38+05:30
U=5m/s, a=-2.5m/s2 time=4sec.
s=ut+1/2at2
5×4+1/2 (-2.5)16
20+1/2(-2.5) 16
20×1/2×(-40)=
20+(-20 )
cancel +20 and-20=0

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