If a car is traveling with a velocity of 56 m/s and experiences an acceleration of -4 m/s, is it speeding up or slowing down?
Why?

What is the magnitude of the acceleration vector which causes a particle to move from velocity −5i−2j m/s to −6i+ 7j m/s in 8 seconds. answer in m/s.

When the magnetic domains in a material can be aligned, but eventually drift out of alignment, the material is

Two carts, one of mass 2m and one of mass m, approach each other with the same speed, v. when the carts collide, they hook together. assume that positive momentum is to the right. which graph best represents the momentum of both carts over time, before and after the collision?