Which of the following is an example of an object that could have a net force greater than zero acting on it?
a. a glass resting on a table
b. a ball rolling down a ramp
c. a ladder leaning against a wall
d. a toy car moving east at a constant velocity

An airplane flies eastward and always accelerates at a constant rate. at one position along its path it has a velocity of 34.3 m/s, it then flies a further distance of 40100 m and afterwards its velocity is 47.5 m/s. find the airplane\'s acceleration and calculate how much time elapses while the airplane covers those 40100 m.

Aparticle moves in the xy plane with constant acceleration. at time zero, the particle is at x = 6 m, y = 8.5 m, and has velocity ~vo = (9 m/s) ˆı + (−2.5 m/s) ˆ . the acceleration is given by ~a = (4.5 m/s 2 ) ˆı + (3 m/s 2 ) ˆ . what is the x component of velocity after 3.5 s? answer in units of m/s.

Acar travels in reverse. it covers 150 meters in 12 seconds what is the velocity of the car what is the speed of the car