3. The position of an object moving
along the x - axis is given by the
relation x = a + bt? where a = 8.5m,
b = 2.5 ms 2 and 't is in seconds.
What is the velocity at t = Os and
t = 2s? Also what is the average
velocity between t = 2s and t = 4s?
Answers
Answered by
0
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
Similar questions