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JAMB - Physics (1999 - No. 39)
The diagram above shows the velocity-time graph of a vehicle. Its acceleration and retardation respectively are
8.0 ms
-2
, 4,0 ms
-2
4.0 ms
-2
, 8.0 ms
-2
4.0 ms
-2
, 2.0 ms
-2
2.0 ms
-2
, 4.0 ms
-2
Paliwanag
Acceleration = slope =
AE
/
OE
=
80
/
20
= 4m/s
2
∴ acceleration and retardation = 4m/s
2
; 2m/s
2
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