SOLUTION: A log is floating on swiftly moving water. A stone is dropped from rest from a 75-m high bridge and lands on the log as it passes under the bridge.
(a) What is the velocity of th
Algebra.Com
Question 1191829: A log is floating on swiftly moving water. A stone is dropped from rest from a 75-m high bridge and lands on the log as it passes under the bridge.
(a) What is the velocity of the stone when it lands on the log?
(b) How long does it take the stone to reach the log?
(c) If the log moves with a constant speed of 5.0 m/s, what is the horizontal distance between the log and the bridge when the stone is dropped?
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
A log is floating on swiftly moving water. A stone is dropped from rest from a 75-m high bridge and lands on the log as it passes under the bridge.
(a) What is the velocity of the stone when it lands on the log?
Using 10 m/sec/sec for gravity:
----
s = at^2/2 = 75
5t^2 = 75
t = 5 seconds to impact.
v = at = 10*5 = 50 m/sec
===================
(b) How long does it take the stone to reach the log?
5 seconds as in (a)
---------------
(c) If the log moves with a constant speed of 5.0 m/s, what is the horizontal distance between the log and the bridge when the stone is dropped?
----
Find the hypotenuse with sides of 25 & 75 meters
RELATED QUESTIONS
Peter is standing on a bridge and throws a stone up into the air at 30 m/s. The stone... (answered by KMST)
please help. A boy on the bridge throws a stone horizontally with a speed of 25 m/s... (answered by Alex.33)
Please help with the following word problem:
A stone is thrown upward from a bridge. The (answered by jim_thompson5910)
A parabolic bridge is built across the water. It is 50m long, and its highest point is... (answered by josgarithmetic,josmiceli)
A bridge uses a parabolic arch to support it as shown in the picture. The bridge is 100 m (answered by galactus)
Example on free fall:
1. A body is released from rest and falls freely. Compute its... (answered by mananth)
River flows at 2 mph. Phil can paddle in still water at 8 mph. If he is 4 miles... (answered by Paul,JWG)
Its completing the square
1.) koko dropped a stone from a bridge to water 100m below.... (answered by josgarithmetic)
Hello, tutors! Please help me with the problem down below :)
The time t (in... (answered by Alan3354)