A rowboat passenger uses an oar to push the boat off the dock by exerting a force of 40.0 N for 3.0 s. What impulse acts on the boat? What formula do I use?

120

Impulse is equal to Force*Time, so this is just 60*2=120 N*s

To calculate the impulse acting on the boat, you can use the formula:

Impulse = Force × Time

Given that the force applied is 40.0 N and the time is 3.0 s, you can substitute these values into the formula to find the impulse:

Impulse = 40.0 N × 3.0 s
Impulse = 120 N·s

Therefore, the impulse acting on the boat is 120 N·s.

To find the impulse acting on the boat, you can use the formula:

Impulse = Force × Time

In this case, the force exerted on the boat is 40.0 N and the time for which the force is exerted is 3.0 s. Simply multiplying these values will give you the impulse acting on the boat.

Impulse = 40.0 N × 3.0 s
Impulse = 120.0 N·s

Therefore, the impulse acting on the boat is 120.0 N·s.