Advertisements
Advertisements
प्रश्न
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 |
Advertisements
उत्तर
| Column A | Column B |
| (a) Camel | broad feet |
| (b) Truck | six or eight tyres |
| (c) Knife | sharp cutting edge |
| (d) High building | broad and deep foundation |
| (e) Thrust | N |
| (f) Moment of force | N m |
| (g) Atmospheric pressure | atm |
APPEARS IN
संबंधित प्रश्न
A nut is opened by a wrench of length 20 cm. If the least force required is 2N, find the moment of force needed to loosen the nut.
A force always produces both the linear and turning motions.
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.
Name and define the S.I. and C.G.S. units of force. How are they related?
A spanner (or wrench) has a long handle. Why?
The figure shows two forces each of magnitude 10 N acting at the point A and B at a separation of 50 cm, in opposite directions. Calculate the resultant moment of two forces about the point.
- A,
- B and
- O situated exactly at the middle of the two forces.
Two unlike forces (parallel) of 10 N and 25 N act at a distance of 12 cm. from each other. Find the point about which the body balance.
A person standing in front of a cliff fires a gun and hears its echo after 3 s. If the speed of sound in air is 336 ms−1.
- Calculate the distance of the person from the cliff.
- After moving a certain distance from the cliff, he fires the gun again, and this time the echo is heard 1.5 s later than the first. Calculate the distance that the person moved.
