9. If F = 40 N and M= 1.5 kg, and The 2M block is on a table while the m block is hanging off, what is the tension in the string connecting M and 2M? Assume that all surfaces are
frictionless.

a. 13N
b. 23 N
c. 36 N
d. 15 N
e. 28 N

11. you want to calculate the displacement of an object thrown over a bridge. using -10 m/s2 for acceleration due to gravity, what would be the total displacement of the object if it took 8 seconds before hitting the water?

Which object is most likely represented by a dot?

You are traveling in a car going at a constant speed of 100km/h down a long, straight highway. you pass another car going in the same direction which is traveling at a constant speed of 80km/h. as measured from your car's reference frame this other car is traveling at −20km/h. what is the acceleration of your car as measured from the other car's reference frame? what is the acceleration of the other car as measured from your car's reference frame?