Advertisements
Advertisements
प्रश्न
A meter scale is provided at 10 cm mark and is balanced by suspending 400 g from 0 cm mark (fig.). Calculate the mass of meter scale.
Advertisements
उत्तर
Clockwise Moment (due to 400 g at 0 cm)
Moment = 400 × (10 − 0) = 400 × 10 = 4000 g
Anticlockwise Moment (due to weight of scale at 50 cm)
Moment = M × (50 − 10) = M × 40
M × 40 = 4000 ⇒ M = `4000/40`
= 100g
APPEARS IN
संबंधित प्रश्न
A force is applied on (i) a non-rigid body and (ii) a rigid body. How does the effect of the force differ in the above two cases?
State the S.I. unit of moment of force.
State one way to decrease the moment of a given force about a given axis of rotation.
State the condition when the change in the momentum of a body depends only on the change in its velocity.
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.
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
A body is acted upon by two forces of magnitude F but in opposite directions. State the effect of the force if both forces act at the same point of the body.
Give an example for each of the following uses of a machine:
to change the point of application of force
What is the work done when no net force is applied on the body?
Give any two effects of a force on a non-rigid body.
