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Which of the following is the force that resists sliding motion between two surfaces in contact?
3mph/s
The net force of the two teams is zero.
Its motion and acceleration are in opposite directions.
both the mass of the object and the size of the force
smooth surfaces
friction
inertia
mechanical advantage
The change of motion of an object depends on
3mph/s
The net force of the two teams is zero.
Its motion and acceleration are in opposite directions.
both the mass of the object and the size of the force
smooth surfaces
friction
inertia
mechanical advantage
The tendency of an object to stay at rest and the tendency of an object in straight-line motion to continue moving is ________
3mph/s
The net force of the two teams is zero.
Its motion and acceleration are in opposite directions.
both the mass of the object and the size of the force
smooth surfaces
friction
inertia
mechanical advantage
What decreases friction?
3mph/s
The net force of the two teams is zero.
Its motion and acceleration are in opposite directions.
both the mass of the object and the size of the force
smooth surfaces
friction
inertia
mechanical advantage
Children are playing tug-of-war, a contest in which each team tugs on a rope to pull the other team across a line. Everyone is tugging on the rope. Why is no one moving?
3mph/s
The net force of the two teams is zero.
Its motion and acceleration are in opposite directions.
both the mass of the object and the size of the force
smooth surfaces
friction
inertia
mechanical advantage
Why is the force going into a simple machine always greater than the force going out?
3mph/s
The net force of the two teams is zero.
Its motion and acceleration are in opposite directions.
both the mass of the object and the size of the force
smooth surfaces
friction
inertia
mechanical advantage
What happens when a ball rolls uphill?
3mph/s
The net force of the two teams is zero.
Its motion and acceleration are in opposite directions.
both the mass of the object and the size of the force
smooth surfaces
friction
inertia
mechanical advantage
If a car is traveling at 15 mph and increases to a speed of 45 mph in 10 seconds, what is the acceleration?
3mph/s
The net force of the two teams is zero.
Its motion and acceleration are in opposite directions.
both the mass of the object and the size of the force
smooth surfaces
friction
inertia
mechanical advantage
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