Teaching Haryana (HPSC) Assistant Professor Mock Test 2025 Physics Laws of Motion Common forces in mechanics
A heavy box of mass 50 kg is moving on a horizontal surface. If co-efficient of kinetic friction between the box and horizontal surface is 0.3 then force of kinetic friction is :
1
14.7 N
2
147 N
3
1.47 N
4
1470 N
5
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