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RRB Group-D Model Paper 20 with answers for online practice
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© examsnet.com
Question : 90
Total: 100
Kinetic friction in comparison to static friction is
more
less
equal
equal or more
Validate
Solution:
Static and sliding friction
The impending motion of the body is opposed by static friction.
When the external force exceeds the maximum limit of static friction, the body begins to move.
Kinetic friction
Once the body is in motion, it is subject to sliding or kinetic friction which opposes relative motion between the two surfaces in contact.
Kinetic friction is usually less than the maximum value of static friction.
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