MCQ
Which one of the following forces is a contact force?
- AForce of gravity.
- ✓Magnetic force.
- CForce of friction.
- DElectrostatic force.
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|
Surface
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$M$
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$N$
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$O$
|
$P$
|
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Force Needed (N)
|
$670$
|
$570$
|
$320$
|
$500$
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