Advertisements
Advertisements
प्रश्न
A wheel of diameter 3 m is shown in fig. 2 with axle at 0. A force F = 8 N is applied at Q in the direction shown in figure. Calculate the moment of force about:
(i) centre o, and
(ii) point p.
Advertisements
उत्तर
(i) Moment of force = applied force x perpendicular distance from the line of action
Moment of force at O = 8 x 1.5 = 12 Nm
(ii) Momemnt of force = applied force x perpendicular distance from the line of line
Moment of force at P = 8 x 3 = 24 Nm
APPEARS IN
संबंधित प्रश्न
The steering wheel of a vehicle is of large diameter.
The moment of a force of 25 N about a point is 2.5 N m. Find the perpendicular distance of force from that point.
A spanner of length 10 cm is used to open a nut by applying a minimum force of 5.0 N. Calculate the moment of force required.
A car of mass 600 kg is moving with a speed of 10 ms-1 while a scooter of mass 80 kg us moving with a speed of 50 ms-1. Compare their momentum.
Write the expression for calculating the moment of force about a given an axis.
State one way to reduce the moment of given force about a given axis of rotation.
Three forces A, B and C are acting on a rigid body which can turn about O in fig.9. If all the three forces are applied simultaneously, in which direction will the body move? Explain.
State two factors affecting the turning effect of a force.
A jack screw is provided with a long arm. Explain why?
State when the moment of force is positive and when it is negative.
