When milk is churned, cream gets separated due to
gravitational force
fricitional force
centrifugal force
centripetal force
For given systen $T_2$ .......
Two persons are holding a rope of negligible weight tightly at its ends so that it is horizontal. A $15\, kg$ weight is attached to the rope at the mid-point, which now no longer remains horizontal. The minimum tension required to completely straighten the rope is
There are four forces acting at a point $P$ produced by strings as shown in figure. Which is at rest ? Find the forces $F_1$ and $F_2$.
Which force act on body first action or reaction ?