An object falls from rest over a high cliff with an acceleration of 10 m/s.
(a) What is its velocity after (í) 1s, (ii) 2 s, (iii) 3 s, (iv)
4s, (v) 5s?​

The most important difference between a wedge and an inclined plane is a. their size b. their shape c. how they are used d. what they are made of

Which car has the most kinetic energy? a. a car of mass 1000 kg with a speed of 3 m/s b. a car of mass 2000 kg with speed 7 m/s c. a car of mass 1000 kg with speed 7 m/s d. a car of mass 2000 kg with speed 3 m/s

Automobile fuel efficiency is often measured in miles that the car can be driven per gallon of fuel (mpg). heavier cars tend to have lower fuel efficiencies (lower mpg ratings). which variable (weight or fuel efficiency) is most naturally considered the explanatory (predictor) variable in this context?