# Math Help - A one dimensional...

1. ## A one dimensional...

Help me please!

2. Originally Posted by pocahontas
Help me please!
a)The impulse is:

$\int_0^T \ F(t)\ dt$,

$T$, the duration over which the force is acting, so in this case it is the shaded area in the figure.

b)The average force is:

$\frac{\left(\int_0^T\ F\ dt\right)}{T}$

so is the shaded area divided by 0.14s.

RonL

3. Originally Posted by pocahontas
Help me please!
(c) the change in momentum is equal to the average force times the duration,
or to the impulse. So the change in speed is the absolute value of the impulse
divided by the mass.

RonL