Question

Q1) Select the correct alternative :
i. The pressure and thrust are related as
a. Pressure = Thrust
b. Pressure = Thrust × Area
c. Pressure = Thrust/Area
d. Pressure = Area/Thrust

ii. A body weighing 5 kgf placed on a surface area on 0.1 metre square exerts a thrust on the surface :
a. 50 kgf
b. 5 kgf
c. 50 kgf metre square
d. 5 kgf metre square

iii. The feet of a lizard acts like :
a. Moving pads
b. Drilling pads
c. Suction pads
d. None of the above

iv. Pressure exerted by a liquid is due to its
a. Weight
b. Mass
c. Volume
d. Area

v. Pressure inside a liquid increases with
a. Increase in depth
b. Decrease in depth
c. Decrease in density
d. None of the above

Kindly give proper answers ​

Answer 1

Answer. --- Pressure = THRUST/ AREA

EXPLAINATION---

Thrust : Force exerted by an object perpendicular to the surface is called thrust. Pressure : Force exerted by any object per unit area is called pressure. ... Thus pressure is related to the thrust exerted on a surface area.

c) Drilling pads

EXPLAINATION---

As lizards are not able to lift their body up to the limbs, they have to crawl using the help of limbs and tail. The snakes have three different ways of moving on land: lateral undulating, straight crawling, and side winding.

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