0
A force of 320 N is required to pull a box across the floor at a constant velocity What is the force of friction between the floor and the box?
Wiki User
∙ 13y ago
It's 320 N. Since the friction force is in the direction opposite to the motion, the
pulling force and the friction force balance, the net horizontal force on the box is
zero, and its speed is therefore constant.
Wiki User
∙ 13y ago
Add your answer:
Earn +20 pts
What is difference between an object moving with uniform acceleration and an object moving with a constant velocity?
A motion with a constant speed will always be moving the same speed A motion with a constant acceleration will constantly be gaining speed, and does not remain moving at the same speed.
When will a net force increase an object's velocity?
A net force will increase an object's velocity when the force is applied in the same direction as the object's current velocity. This will result in acceleration in that direction, causing the object's velocity to increase over time.
A 300 kg bear grasping a vertical tree slides down at constant velocity The friction force between the bear and tree is how many neutrons?
According to Newton's second law, F=ma. That is, the bear's acceleration should be proportional to the total force acting on the bear. As the bear's velocity is constant, its acceleration is zero. Therefore, the total Force acting on the bear is zero. Thus, the friction has to be equal in magnitude and opposite in direction to the bear's weight. As W=mg, we get that its weight is 9.8*400=3,920 Newton. Thus, the friction acting on the bear is 3,920 Newton upwards.
What is the difference between group velocity and phase velocity in a stationary wave on a string?
The velocity of a wave which maintains consatnt phase at all successive positions during propogation is known as wave velocity or phase velocity. The velocity of a group of waves which maintains constant poditions during the propogation is known as group velocity.
What is the Difference between Uniform motion and uniform acceleration?
"Uniform motion" means constant velocity ... constant speed in a straight line. "Acceleration" means any change in velocity ... speed or direction. So 'uniform motion' means zero acceleration.
What is the different between constant velocity and constant speed?
constant velocity is when you maintain speed and direction, this usually is in a straight line, and constant speed means that your speed is always constant at all times.
What is the difference between uniform velocity and constant velocity?
i think these are different.
What is the difference between constant velocity and variable velocity?
Constant velocity has speed always constant along the direction with respect to time. Variable velocity changes its speed with respect to time. Constant velocity has zero acceleration. Variable velocity has non-zero acceleration . An object moving at a constant velocity maintains both the same speed and direction. An object moving at a variable velocity can be changing speed or direction of travel or both.
Differentiate between steady flow and pipe unsteady flow?
The velocity is constant in a steady flow pipe while in the unsteady flow the velocity is not constant.
A block is dragged at constant velocity in a straight-line path across a level surface by a force of 6 N what is the force of friction between the block and the surface?
'Constant velocity' means constant speed and direction. If the speed of the block is constant along the level block, then the net force on it in the forward direction must be zero. (It isn't accelerating.) You're pulling it in the forward direction with a force of 6 N. So the force of friction in the opposite direction must also be 6 N, for a total of zero.
What is the difference between static friction and sliding friction?
Sliding friction is always less than the static friction by small amount.
Can an object acceleration if its velocity is constant?
No. It is a matter of definition. Acceleration is defined as a change of velocity. Technically, one must distinguish between velocity and speed. Velocity is a vector and includes the information about the magnitude (speed)and direction. One can have a constant speed and an acceleration (as in circular motion) but, by definition, constant velocity means zero acceleration.
What are two factors that affect the friction force between two surfaces?
mass and velocity
What are the two factor that affect the friction force between two surfaces?
mass and velocity
What are the two factors that affect the the friction force between two surfaces?
Mass and velocity.
What are two factors that affect friction force between two surfaces?
Mass And Velocity
What are the two surfaces that affect the friction force between two surfaces?
mass and velocity
