Week 3

Using the reference frame defined in the lesson, an object moving to the left and slowing down has

negative displacement, negative velocity, positive acceleration

The direction of the normal force is

perpindicular and away from the surface of contact

Once a freely falling object has reached terminal velocity, the accelertation of the object is

zero

A net force of 8 N on an object will casue a 4 kg object to accelerate

2 m/s^2

What is the mass of an object that exerts a net force of 15 N an dis accelerating at 5 m/s^2

3.0 Kg

If an object of constant mass experiences a constant net force, it will have a constant

acceleration

If the mass of an object does not change, a constant net force on the object produces constant

acceleration

A bug splatters on the windsheild of a moving automobile. Which object experiences the greater force of impact?

Neither

A skydiver steps from a helicopter and falls a few seconds until he reaches terminal velocity. After he opens his parachute his acceleration is

0

What is the net force on an object that has a mass of 6 kg and is acclerating .25 m/s^2

1.5 N

A net force of 10 N on an object will cause a 2 kg object to accelerate

5 m/s^S