Question

In attempting to pull a 1500-kg car out of a ditch, Arnold exerts a force of 300 N for three seconds, Bob exerts a force of 500 N for two seconds, and Cecil exerts a force of 200 N for four seconds. Who provided the greatest impulse?

Answer 1

So Bob provide maximum impulse to the car

Step-by-step explanation:

As we know that impulse is defined as change in momentum

so here we have

`F = (\Delta P)/(\Delta t)`

`F\Delta t = \Delta P`

so here we can say that

`impulse = F\Delta t`

1), Arnold exerts a force of 300 N for three seconds,

So impulse due to force of Arnold

`Impulse = 300 * 3`

`Impulse = 900 Ns`

2). Bob exerts a force of 500 N for two seconds,

So impulse due to force of Bob

`Impulse = 500 * 2`

`Impulse = 1000 Ns`

3). Cecil exerts a force of 200 N for four seconds.

So impulse due to force of Cecil

`Impulse = 200 * 4`

`Impulse = 800 Ns`