A child pushes a cat on the floor with a force of 1.4N for 15 seconds. What is the impulse? Picture added help!

Write a question about how changing temperature affects the gas inside the sports ball

What is the final velocity of the initial velocity of 25 and -50?

Consider two less-than-desirable options. in the first you are driving 30 mph and crash head-on into an identical car also going 30 mph. in the second option you are driving 30 mph and crash head-on into a stationary brick wall. in neither case does your car bounce off the thing it hits, and the collision time is the same in both cases. which of these two situations would result in the greatest impact force?