What is the impulse that a car with mass of 5kg experiences when its velocity changes from -9m/s to 25m/s?

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In order to do work, the force vector must be question 1 options: in a different direction than the acceleration vector. in a different direction than the displacement vector. in the same direction as the displacement vector and the motion. in the same direction as the acceleration vector.

With physics question #5? for any !

What is a transverse wave? how do the particles in the medium move in relation to the energy of the wave? does this wave require a medium?