5. The diagram below shows two forces applied to a 2.0-kilogram block on a frictionless, horizontal surface.
F = 8.0 N
2.0 kg
F2 = 3.0 N
Frictionless Surface
What is the acceleration of the block?
A 4.0 m/s2 to the left
B. O 2.5 m/s2 to the right
C. O 2.5 m/s2 to the left
D. 1.5 m/s2 to the right

When you drop a pebble from height a it reaches the ground with speed v if there is no air resistance. from what height should you drop it so it will reach the ground with three times the speed? (a) 9m (b) 3m (c) 6m (d) 18m

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?

1.what is where an object is located 2. what is how fast an objects speed is changing 3. what is how fast an object is moving