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.
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
A force always produces both the linear and turning motions.
Moment of force = force × perpendicular distance of force – from the pivoted point.
A body X of mass 5 kg is moving with velocity 20 m s-2 while another body Y of mass 20 kg is moving with velocity 5 m S-1. Compare the momentum of the two bodies.
A car of mass 600 kg is moving with a speed of 10 m-1 while a scooter of mass 80 kg is moving with speed of 50 m s-1. which vehicle will require more force to stop it in the (1) same interval of time (2) same distance
The stone of hand flour grinder is provided with a handle near its rim. Give reason.
Define couple.
Define the moment of force.
Write the expression for calculating the moment of force about a given point.
A couple of 15 N force acts on a rigid body, such that arm of couple is 85 cm. Calculate moment of couple in the SI system.
A nut is opened by a wrench of length 25 cm. If the least force required is 10 N, find the moment of force needed to turn the nut.
