phy6

A=(a)

5 Answers

25x10⁴

this is just a dimensional analysis question ;)

Very simple

The change in pressure is 0.05 * 10⁵

P = F/A
F = PA
F = 0.05*10⁵ * 50
F = 2.5*10⁵
F = 25 * 10⁴

Force is equal to the dynamic lift

see pressure x area = force..

lift is force upwards - force downwards

the first one can be done simply by dimensional analysis..

oh...sorry bhaiya, this did not struck in my mind...thanq a lot...
thanq virang1

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