Acar accelerates from rest at a rate of 5m/s^2. how fast is it traveling after 4 seconds

After a big snowfall, you take your favorite rocket-powered sled out to a wide field. the field is 195 m across, and you know that your sled accelerates at a rate of 3.65 m/s2 when the rocket is on. how much time will it take the sled to cross the field starting from rest, assuming the rocket is on the whole time?

Which is the best for showing percentages of different types of cars sold(gas hybrid , electric , other ) in the united states ?

Which best represents the law of conservation of mass ?