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A body starts at t=0 with velcoity u and...

A body starts at `t=0` with velcoity `u` and travels along a straight linge. The body has a constant acceleration(a). Draw the acceleration-time graph from `t=0` to `t=10 s` for the following cases:
a. `u=8 ms^(-1)`, a=2s^(-2)`
b. `u=8 ms^(-1)`, a=-2 ms^(-2)`
c. `u=- 8ms^(-1)` ,a=2 ms^(-2)`
d. `u=-8ms^(-1)` ,a=-2 ms^(-2)`.

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