No One's Is Coming To Push U

Give one state each with dominating push & pull factors.

Three boys are pushing horizontally a box placed on horizontal table. One is pushing towards north with a 5sqrt(3) N force. The second is pushing towards east and third pushes with a force 10 N such that the box is in equilibrium. Find the magnitude of the force, second by is applying in newton.

The probabilities of two students A and B coming to the school in time are 3/7" " and 5/7 respectively. Assuming that the events, A coming in time and B coming in time are independent, find the probability of only one of them coming to the school in time. Write at least one advantage of coming to school in time.

The units (U) of velocity acceleration and force in two systems are related as under: (a) U'_(V) = (alpha^(2))/(beta)U_(V) , (b) U'_(a) = (alpha beta)U_(a) (c) U'_(F) = [(1)/(alpha beta)]U_(F) All the primed symbols (U) belong to one system and unprimed ones (U) belong to the other systems. alpha and beta are dimensionless constants. How momentum units of the two systems are related?

The probability of two students A and B coming to school are 2/7 and 4/7 respectively. Assuming that the events 'A coming on time' and 'B coming on time' are independent, find the probability only one of them comes on time.

A van is standing on a frictionless portion of a horizontal road. To start the engine, the vehicle must be set in motion in theforward direction. How can the persons sitting inside the van do it without coming out and pushing from behind?

Which one of the following is not a push factor?