Question

- (i) How would the pressure ( exerted by a force on an area) change if-

a) the area is doubled keeping the thrust constant ?

b) thrust is doubled keeping the area constant

ii) Give reason:

Tanks and bulldozers are fitted with caterpillar tracks rather than wheels​

Answer 1

Answer:

a) When the surface area is doubled, keeping the force constant, the pressure will decrease.

b)  If the area is doubled keeping the thrust constant, the pressure would be half as : Hence, this is the required solution.

Give Reason

Caterpillar tracks have large surface area than wheels ,larger the surface area, smaller will be the pressure. ... Hence tanks and buldozers are fitted with caterpillar tracks.

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