Question

a cyclist goes one round a circular track of siameter 105 metre in 5min calculate his speeed

Answer 1

...................?????????

Answer 2

n the ans is ??

Answer 3

2x pi x r/5 x60=1.1m/s

Answer 4

1.1m ??

Answer 5

can i ask u one more??

Answer 6

k yah!

Answer 7

a machine gun fires 25 gm bullets at the rate of 600 bullets per min with a speed of 200m/s . calculate the force required to keep the gun in position.

Answer 8

50N

Answer 9

how??? can u do it here???

Answer 10

yah, the change in momentum gives us the force! the bullets exert a force on the bullets which is 25x600/1000(200-0)/60=50 N.thus a force of 50N will keep the gun in equilibrium!

Answer 11

i meant that the bullets exert 50N on the gun!

Answer 12

@eccme in the answer to first qsn you forgot to convert min to sec. correct it!

Answer 13

i did ujjwal!

Answer 14

oh, yeah. sorry, emerging physicist! you should have put them in parentheses. that confused me.

Answer 15

oh ryt,cant beat ur eye for perfection friend!

Answer 16

plzzz solve my 2 equation////

Answer 17

.........................plxzzzzzzzzzzzzzzzz