A car goes forward along a level road at constant velocity. The additional force needed to bring the car into equilibrium is

Question

a
the normal force times the coefficient of kinetic friction.
b
greater than the normal force times the coefficient of static friction.
c
zero.
d
equal to the normal force times the coefficient of static friction.
Question 26 (1 point)
If a nonzero net force is acting on an object, then the object is definitely
a
moving with a constant velocity.
b
being accelerated.
c
at rest.
d
losing mass.

Answer 1

For the first question about the car moving at constant velocity along a level road:

The correct answer is: c - zero.

When the car is moving at a constant velocity, it is in equilibrium with no net force acting on it. The forces acting on the car (such as friction and the driving force) are balanced.

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For the second question regarding the effects of a nonzero net force on an object:

The correct answer is: b - being accelerated.

If a net force is acting on an object, it indicates that the object is experiencing a change in motion, which means it is being accelerated according to Newton's second law of motion (F = ma).