Awoman on a bridge 90.0 m high sees a raft floating at
aconstant speed on the river below. she drops a stone fromrest in
an attempt to hit the raft. the stone is releasedwehn the raft has
6.00 m more to travel before passing under thebridge. the stone
hits the water 2.00 m in front of theraft. find the speed of the
raft.

0.93 m/s

Explanation:

t = Time taken

u = Initial velocity = 0

v = Final velocity

s = Displacement = 90 m

a = Acceleration = 9.81 m/s²

So, the raft covered 6-2 = 4 m in 4.3 seconds

Speed = Distance / Time

Speed of the raft is 0.93 m/s

the earths atmosphere is made up of nitrogen and oxygen. solids can turn into gasses through a process called sublimation. sublimation is the transition of a substance directly from the solid to the gas phase, without passing through the intermediate liquid phase.

hope this : d

v=ir = 3x15 =45 v