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Moment of force =............... × distance of force from the point of turning.
Match the column
| Column A | Column B |
| (a) Camel | (1) broad and deep foundation |
| (b) Truck | (2) broad feet |
| (c) Knife | (3) six or eight tyres |
| (d) High building | (4) sharp cutting edge |
| (e) Thrust | (5) atm |
| (f) Moment of force | (6) N |
| (g) Atmospheric pressure | (7) N m |
A potter turns his wheel by applying a force through the stick near the rim of wheel.
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.
Name of S.I. unit of momentum.
The stone of hand flour grinder is provided with a handle near its rim. Give reason.
Give two examples of a couple's actions in our daily life.
Classify the following amongst contact and non-contact forces.
magnetic force
Calculate the resultant moment of forces about O and state its direction in fig.
A uniform metre rule rests horizontally on a knife-edge at the 60 cm mark when a mass of 10 gram is suspended from one end. At which end must this mass be suspended? What is the mass of the rule?
