the position of an object moving aling x axis is given by x= a+bt^2 where a=8.5m, b=2.5m/s^2 and t is measured in seconds.. what is the velocity at t=0 sec and t= 2sec .what is the average velocity between t=2sec and t=4sec
Answers
Answered by
1
Answer:
Position is given as x=a+bt
2
=8.5+2.5t
2
Position at t=2 s, x
2
=8.5+2.5(2)
2
=18.5 m
Position at t=4 s, x
1
=8.5+2.5(4)
2
=48.5 m
Displacement S=x
2
−x
1
=48.5−18.5=30 m
Time taken t=4−2=2 s
Average velocity V
avg
=
t
S
=
2
30
=15 m/s
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Answered by
0
Answer:
nope
Explanation:
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