Which force always opposes the motion of an object?a) Gravitational forceb) Frictional forcec) Magnetic forced) Tension force
Question
Which force always opposes the motion of an object?
a) Gravitational force
b) Frictional force
c) Magnetic force
d) Tension force
Solution
The force that always opposes the motion of an object is the frictional force.
Explanation:
- Gravitational Force: Acts downwards due to the mass of the object but does not oppose motion in general.
- Frictional Force: It resists the relative motion between two surfaces in contact, effectively opposing the direction of motion.
- Magnetic Force: Can attract or repel depending on the situation but is not always opposing motion.
- Tension Force: Acts along the direction of a rope or string and supports rather than opposes motion.
Therefore, the correct answer is b) Frictional force.
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