Variable Acceleration

82%

A particle $P\,$ moves in a straight line such that at $t\,$ seconds, $\geq 0$ , its velocity, $\text{ ms}^{-1}$ is given by:

v = 12 - 2t^2

a.

the distance travelled by $P\,$ in the first second,

[3]

b.

the value of $t\,$ when $P\,$ changes direction of motion,

[2]

c.

the value of $t\,$ at the instant $P\,$ returns to its starting point.

[3]

82%

A particle $P\,$ moves in a straight line such that at $t\,$ seconds, $\geq 0$ , its velocity, $\text{ ms}^{-1}$ is given by:

v = 12 - 2t^2

a.

the distance travelled by $P\,$ in the first second,

[3]

b.

the value of $t\,$ when $P\,$ changes direction of motion,

[2]

c.

the value of $t\,$ at the instant $P\,$ returns to its starting point.

[3]

Variable Acceleration Questions