I would say unlimited polarity because the compass’s needle is always attracted to Earth’s north pole.
Good luck to you!
Answer:
Because of frictional force acting in the opposite direction.
Explanation:
The force of push on the body of Joel is 60 N. The body doesn't move. This clearly means that there must be a force acting in the opposite direction that has a magnitude equal to 60 N so that the net force acting on the body of Joel is 0 and hence the body doesn't move forward.
This opposite force is the frictional force which acts between the surface of snow and Joel. The frictional force always opposes relative motion.
So, when Joel's friend pushes him, he tends move him forward. Therefore, frictional force acts in the opposite direction to oppose the motion. If the frictional force is strong enough to stop the force of push, the body won't move.
This frictional force acting on a stationary body is a variable force and has a maximum value known as limiting friction. When the force of push exceeds the limiting friction, the body just starts to move. The body won't move till the force pf push is less than or equal to limiting friction.
Thus, Joel' friend push is less than or equal to the limiting friction and therefore, Joel is not moving.
Hello!
Topic: Cinematic
For this we can say:
Initial velocity (u) = 26 m/s
Final velocity (V) = 0 m/s
Time (t) = 3 s
Distance (d) = ¿?
For calculate skidding distance, let's applicate the formula:
Replacing:
The distance is <u>54 meters (m)</u>
F = ma (force = mass x acceleration)
So the car’s mass affects the amount of force, changing how it would roll down a ramp, I think.
Net force
As it's negative the box will move left
