Question
Consider the following statements:
Statement 1: Friction is caused due to interlocking of irregularities present on the surfaces in contact.
Statement 2: Frictional force increases if the two surfaces are pressed harder.
Which of these statements is/are correct?
Answer: Option C
:
C
Friction is caused by the interlocking of irregularities present on the surfaces in contact. Rough surfaces have a large number of irregularities and generally have more friction.
This frictional force increases if the two surfaces are pressed harder. For example, one can easily drag a mat when nobody is sitting on it. However, dragging the same mat becomes quite difficult when a person is sitting on it. Thus, both the statements are correct.
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:
C
Friction is caused by the interlocking of irregularities present on the surfaces in contact. Rough surfaces have a large number of irregularities and generally have more friction.
This frictional force increases if the two surfaces are pressed harder. For example, one can easily drag a mat when nobody is sitting on it. However, dragging the same mat becomes quite difficult when a person is sitting on it. Thus, both the statements are correct.
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