The velocity of a particle is given by the equation V=4t^2+5.
(a)the average acc b/w the time interval t1=2s and t2=4sec
(b)the instatenous accerlation at t=4 sec
1
Expert's answer
2011-10-07T11:30:47-0400
The velocity of a particle is given by the equation V=4t^2+5. (a)the average acc b/w the time interval t1=2s and t2=4sec
V'=8t; (time derivative) a1=8*2=16; (instatenous accerlation at t=2 sec) a2=8*4=32; (instatenous accerlation at t=4 sec) A=0.5(a1+a2)=(16+32)/2=24 (the average acc b/w the time interval t1=2s and t2=4sec).
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