Two children are balanced on opposite sides of a seesaw. If one child leans inward toward the pivot point, her side will . . . .
a) neither rise nor fall
b) fall
c) insufficient dada
d) rise
A body in equilibrium must not be . . . . .
a) at rest
b) moving
c) rotating
d) accelerating
The torque in uniformly rotating fan having blade of length 0.5 m is . . . . .
a) 0.5 Nm
b) 2 Nm
c) - 0.5 Nm
d) 0 Nm
A force of 100 N is applied perpendicularly at 0.5 m, to turn nut of wheel of a bus. The torque acting on nut is . . . . . .
a) 500 Nm
b) 50 Nm
c) 5 Nm
d) 0.005 Nm
The shortest distance between two couple forces is . . . .
a) moment arm
b) couple arm
c) radius
d) double moment
A girl pushes to open a door perpendicularly with a force of 25 N at 0.6 m from the hinge, the torque is . . . . . .
a) 41.6 Nm
b) 25.6 Nm
c) 15 Nm
d) 0 Nm
