11th grade

a rock is dropped from a 20.0m bridge falls into the river below.

a.)at whqat velocity does it strike the water?

b.)how much time did the rock take to reach the water?

  1. 👍 0
  2. 👎 0
  3. 👁 265
  1. 11th grade is NOT the School Subject. Select that carefully so the right teacher will read and answer your post. Math, perhaps?

    Her are some sites that may help you:

    http://search.yahoo.com/search?fr=mcafee&p=how+to+figure+velocity

    Sra

    1. 👍 0
    2. 👎 0

Respond to this Question

First Name

Your Response

Similar Questions

  1. physics

    A rock is dropped off of a bridge into the water below. If the initial velocity was zero, and the well is on Earth (g = 9.8 m/s2), and you see the splash 4.59 seconds after the rock was dropped, how high was the bridge above the

    asked by Anonymous on February 26, 2014
  2. Physics

    A rock is dropped of the side of a bridge and hits the water below 4s later. a. What was the rock’s velocity when it hit the water? b. What was the rock’s average velocity as it fell? c. What is the height of the bridge above

    asked by Jackie on April 6, 2010
  3. PHYSICS- Please Help :(

    A ball is thrown downwards at a velocity of 14m/s from a bridge. One second earlier a rock is dropped from the same bridge. a)When will the ball meet up with the rock. b)When will the ball meet up with the rock? c)What is the

    asked by Coco on February 12, 2012
  4. Physics

    A rock is dropped from a bridge that is 45 m above the water. It falls directly into a model boat, moving with constant velocity, that is 12 m from the point of impact when the key is released. What is the speed of the boat?

    asked by shy on April 22, 2013
  5. Physics

    A rock is thrown vertically with a velocity of 21 m/s from the edge of a bridge 41 m above the river. How long does the rock stay in the air? V = 21 m/s d = 41 m a = -9.80 m/s^2 t = ?

    asked by Anon on September 4, 2007
  6. physics

    A bungee jumper of mass of 60.0 kg falls off a bridge with zero initial velocity. The bridge is 50.0 m above the river. When the cord is stretched at its maximum (position B), the cord stores 10.0 kJ of elastic potential energy.

    asked by Dis List on October 28, 2019
  7. Math Velocity

    Jeff is standing on a bridge 5M above the river, He picks up a small rock and tosses it into the air, the rock reaches a height of 12M in one second and hits the water in about 2.3 seconds Determine when the rock reaches a height

    asked by Michelle on February 8, 2017
  8. physics

    A rock is thrown horizontally from a bridge with a speed of 30.3 m/s. If the rock is 27.2 meters above the river at the moment of release, a)how long the rock is in the air? b)what is the horizontal distance to the point of impact

    asked by Nathaniel on November 3, 2010
  9. Physics

    A rock is dropped from a bridge to the water below. It takes 2.40 s for the rock to hit the water. Find the speed (in m/s) of the rock as it hits the water. How high (in metres) is the bridge above the water?

    asked by Ben on September 26, 2014
  10. physics

    A 3.00 kg rock is dropped from a bridge and strikes the water below with a velocity of 40.0 m/s. What is the momentum at impact?

    asked by Anonymous on October 23, 2011

More Similar Questions