Question

Water coming out of horizontal pipe of Cross section with Speed v strikes a smooth vertical wall normally and rebounds with same speed. If density of water is d what is force on wall?

Answer 1

Answer:

ANSWER

Volume of water coming out of the pipe per sec = A×v=20×10

−4

×10=0.02m

3

/s

mass of water hitting the wall per sec = m = 0.02×10

3

=20 kg/sec

force=

t

2mv

=2×20×10=400N