If a car is moving to the left with constant velocity, one can conclude that
the net force applied to the car is zero.
An object cannot remain at rest unless
the net force acting on it is zero
An object will have constant acceleration if
the net force acting on it is constant in magnitude and direction.
An object cannot remain at rest unless which of the following holds?
The net force acting on it is zero.
If a block is moving to the left at a constant velocity, what can one conclude?
The net force applied to the block is zero.
A block of mass 2kg is acted upon by two forces: 3N (directed to the left) and 4N (directed to the right). What can you say about the block’s motion?
It could be moving to the left, moving to the right, or be instantaneously at rest.
A massive block is being pulled along a horizontal frictionless surface by a constant horizontal force. The block must be __.
moving with a constant nonzero acceleration
Two forces, of magnitude 4N and 10N, are applied to an object. The relative direction of the forces is unknown. The net force acting on the object __.
Check all that apply.
cannot have a magnitude equal to 5N
An object is moving in the absence of a net force. Which of the following best describes the object’s motion?
The object will continue to move with a constant velocity.
An object is moving with constant velocity. Which of the following best describes the force(s) acting on the object?
The net force acting on the object is zero.
A constant net force acts on an object. Which of the following best describes the object’s motion?
The object is moving with a constant acceleration.
The same net force is applied to two different objects. The second object has twice the mass of the first object. Compare the acceleration of the two objects.
The acceleration of object 1 is twice the acceleration of object 2.