Saturday

November 28, 2015
Number of results: 52,324

**physics**

9. A stone is thrown at an angle of 30° above the horizontal from the top edge of a cliff with an initial speed of 19.6 m/s. A stop watch measures the stone's trajectory time from top of cliff to bottom to be 6.7 s. How far out from the cliff's edge does the stone travel ...
*June 10, 2010 by sam*

**Physics ?#2**

A ball is dropped from the top of a 53.0m high cliff. At the same time, a carefully aimed stone is thrown straight up from the bottom of the cliff with a speed of 25.0m/s The stone and ball collide part way up. How far above the base of the cliff does this happen in meters?
*September 8, 2009 by Cara*

**physics**

a physics book is thrown horizontal at a velocity of 10.0m/s from the top of a cliff 78.4 m high. a). how long does the stone take to reach the bottom of the cliff? b.) how far from the base of the base of the cliff does the stone stike the ground?
*November 3, 2010 by romy*

**physics**

A stone is thrown horizontally at a speed of 4.8 m/s from the top of a cliff 88.5 m high. How long does it take the stone to reach the bottom of the cliff?
*October 24, 2011 by Anonymous*

**physical science**

a stone is thrown horizontally at a speed of 5.o m/s from the top of a cliff 78.4 m high. How long does it take the stone to reach the bottom of the cliff?
*June 24, 2008 by angela*

**physics**

A stone is thrown horizontally with an initial speed of 10 m/s from the edge of a cliff. A stop watch measures the stone's trajectory time from the top of the cliff to the bottom to be 4.3 s. What is the height of the cliff?
*September 13, 2010 by Indira*

**physics**

3)A soldier throws a grenade horizontally from the top of a cliff. Which of the following curves best describes the path taken by the grenade? Parabola 4)A stone is thrown horizontally from the top of a 25.00-m cliff. The stone lands at a distance of 40.00 m from the edge of ...
*April 1, 2008 by Jon*

**Physics**

a person standing at the edge of a seaside cliff kicks a stone horizontally over the edge with speed of 31 m/s cliff is 51 m above water. how far from base of cliff does stone land and what is speed of stone when it hits water
*December 17, 2014 by Anonymous*

**Physics**

A stone is thrown horizontally from the top of a 25.00 m cliff. The stone lands at a distance of 40.00 m from the edge of the cliff. What is the initial horizontal velocity of the stone?
*August 31, 2010 by Anonymous*

**Physics**

A stone is thrown from a 50m high cliff and lands 5 seconds later, 40m from the base of the cliff. At what speed and angle was the stone thrown?
*February 22, 2011 by Jessica*

**Physical Sciences**

A stone is thrown from a 50m high cliff and lands 4 seconds later, 40m from the base of the cliff. At what speed and angle was the stone thrown?
*February 26, 2009 by Mbali*

**Physics**

A person standing at the edge of a seaside cliff kicks a stone horizontally over the edge with a speed of 14.3 m/s. The cliff is 47.6 m above the water's surface. How far in meters from the base of the cliff does the stone land?
*November 13, 2012 by Asia*

**Physics**

A person standing at the edge of a seaside cliff kicks a stone horizontally over the edge with a speed of 14.3 m/s. The cliff is 47.6 m above the water's surface. How far in meters from the base of the cliff does the stone land?
*November 13, 2012 by Asia*

**mechanics**

a stone is dropped from a cliff 200m high.if a second stone is thrown verticall upwards 1.50seconds after the first was released.strike the cliff base at the same instant as the first stone.with what velocity was the second stone thrown
*January 30, 2013 by chibuzor*

**Physics**

Help imediately please very urgent! A stone is dropped from a cliff 200m high,if a second stone is thrown vertically upwards 1.50sec after the first was released,strike the base of the cliff at the same in stant as the first stone,with what velocity was the second stone thrown?
*January 4, 2013 by Precious*

**physics**

Madhuri throws a stone the stone is thrown horizontally at 33.9 m/s from the top of a 297.9m cliff. 1.How high is the stone after 3.35 sec? 2.What is the range? equations to find please.
*October 5, 2010 by Bansnoob*

**physics**

A stone is dropped from the top of a cliff which is 100m high. At the same time another stone is vertically thrown upwards from the foot of the cliff woth a speed of 40m/s.AT what height and when do the stones meet
*April 30, 2015 by asgf*

**physics**

A stone is thrown horizontally from a cliff 25m high and lands on the ground 22 m from the foot of the cliff. What is the horizontal acceleration on the stone?
*September 28, 2011 by chelsea*

**Maths**

A stone is thrown up at an angle of 30degrees to the horizontal with a speed of 20metres per second from the edge of a cliff 15m above sea level, so that the stone lands in the sea. Find how long the stone is in the air and how far from the base of the cliff it lands.
*November 22, 2015 by Viviana*

**Calculus/Physics**

A stone is thrown from a cliff top with an upward velocity of 20 m/s. It takes 7 seconds for the stone to hit the ground at the bottom of the cliff. How high is the cliff? I know you use the equation of motion S(t)= (So)+(Vo)t-(1/2)gt^2 S(20)= (So) + 140 - 240.1 (So) = -100.1 ...
*July 8, 2010 by Elisabeth*

**Physics**

A ball is dropped from the top of a 49.0 -high cliff. At the same time, a carefully aimed stone is thrown straight up from the bottom of the cliff with a speed of 20.0 . The stone and ball collide part way up.
*October 7, 2012 by Yan*

**phyiscs**

A stone is thrown horizontaly from the top of a 25.00-m cliff. The stone lands at a distance of 40.00 m from the edge of the cliff. What is the horizontal velocity of the stone?
*October 22, 2010 by ashlee*

**Physics**

a stone is thrown horizontally from the edge of the cliff with speed of 18m/sec. Cliff is 50 meters high
*September 20, 2011 by Jay*

**Physics - Projectile Motion**

While Hiking in the wilderness, you come to the top of a cliff that is 60.0m high. you throw a stone from the cliff, giving it an initial velocity of 21m/s at 35deg above the horizontal. How far from the base of the cliff does the stone land? (85m) I tried this question but i ...
*August 19, 2010 by Shaila*

**Physics Honors**

A ball is kicked horizontally at 8.0 m/s from a cliff 80 meters high. How far from the base of the cliff will the stone strike the ground?
*October 23, 2011 by Allison*

**physics**

Multiple part question….. A student stands at the edge of a cliff and throws a stone horizontally over the edge with a speed of 18.0 m/s. The cliff is 50.0m above a flat, horizontal beach. With what angle of impact does the stone land (in degrees). A student stands at the edge...
*September 26, 2008 by mb*

**physics for physical science **

A stone thrown vertically upwards with a speed of 12m/s from the edge of Cliff 70m high. Calculate the time the stone takes to hit the bottom of the cliff.
*March 9, 2015 by Justin *

**physics**

A stone is thrown horizontally outward from the top of a bridge, the stone is released 19.6meter above the street below.the initial velocity of the stone is 5.0m/s.determine the (a)total time that the stone is in the air (b)magnitude and direction of the velocity"projectille ...
*July 28, 2015 by anthony*

**Physics**

A student stands at the edge of a cliff and throws a stone horizontally over the edge with a speed of 21.0 m/s. The cliff is h = 60.0 m above a flat horizontal beach. A)How long after being released does the stone strike the beach below the cliff? B)With what speed and angle ...
*October 20, 2010 by KC*

**phy**

A stone is thrown upward from the edge of a cliff overlooking the ocean. The initial speed of the stone is 20m/s, and it's thrown up at an angel of 30 degrees with respect to the horizontal. the cliff is 45m above the ocean surface. How long is the stone in flight before ...
*October 12, 2012 by nicky*

**physics**

A student stands at the edge of a cliff and throws a stone horizontally over the edge with a speed of 18 m/s. the cliff is 50 m above a flat, horizontally beach. how long after being released does the stone strike the beach below the cliff?
*September 25, 2008 by mb*

**Physical**

At t = 0 s time a stone is thrown from the top of a cliff above a lake. Another stone is thrown down from the same point , 1.6 s later , with a initial velocity of 32.0 m / s. The two stones hit the water in one instant. Determine the cliff height.
*November 25, 2015 by Michel*

**Physics**

A stone is thrown straight upward with a speed of 12 m/s from the edge of a 70 m high cliff. How long is the stone in the air? What is the speed just before it hits the ground? What is the total distance the stone traveled?
*September 12, 2012 by Katie*

**Physics**

Q1-a stone is thrown upwards into the what is the magnitude and direction of its acceleration ? Q2-if a ball is thrown horizontally from a top of a cliff and takes 3 seconds to reach the beach below. Calculate the height if the cliff by considering the vertical motion only
*September 23, 2014 by Nsreen*

**Math **

A stone was thrown from the top of a cliff. The height, H meters, of the stone above sea level t seconds after it was released is given by H=-5t+20t+60. a)How high is the cliff? What makes you say this? b) How high is the stone after two seconds? c) What is the maximum height...
*March 5, 2014 by Sally*

**physics**

A boy drops a stone-A, down from a cliff 480 meters high, next he throws a stone-B, 1 second later - at what initial velocity was the stone-B be thrown so as to meet the stone-A on ground at the same time? g=10 m/s2.
*June 21, 2011 by alex*

**Physic**

A ball is thrown horizontally from a cliff at a speed of 15 m/s and strikes the ground 45 meters from the base of the cliff. How high was the cliff (rounded to the nearest meter)
*February 27, 2013 by Unknown*

**Physics**

A stone is thrown from the edge of a cliff into the ocean below. It is thrown somewhat upward, but mostly outward. The stone has a mass of 2.0kg and is thrown with a speed of 10m/s from an initial height of 5.0m above the ocean. A. What is the kinetic energy of the stone when ...
*April 1, 2013 by Jay*

**Physics**

A stone is thrown from the edge of a cliff into the ocean below. It is thrown somewhat upward, but mostly outward. The stone has a mass of 2.0kg and is thrown with a speed of 10m/s from an initial height of 5.0m above the ocean. A. What is the kinetic energy of the stone when ...
*April 1, 2013 by Jay*

**Physics - URGENT**

A ball is thrown horizontally of a cliff. If the initial speed of the ball is 17 m/s and the cliff is 77 m high, how far from the base of the cliff will the ball land in the water below? Calculate the answer in meters (m) and rounded to three significant figures.
*September 16, 2015 by Anonymous*

**Physics**

A ball is thrown horizontally at 20 m/s from the top of a cliff 50 meters high. How far from the base of the cliff does the ball strike the ground?
*June 13, 2013 by Harvey*

**Physics**

A person is standing on the edge of a cliff of height h= 24 m. She throws a stone of mass m=0.2 kg vertically down with speed v0= 10 m/s (stone 1) and another stone of the same mass vertically up at the same speed (stone 2). The gravitational acceleration is g=10 m/s2. (a) ...
*October 6, 2013 by Anon*

**science**

A stone is thrown vertically upward with a speed of 11.0 m/s from the edge of a cliff 80.0 m high. How much later does it reach the bottom of the cliff?
*February 28, 2011 by cory*

**physics**

A student atands at the edge of a cliff and throws a stone horizontally over the edge with a speed of 18.0 m/s. The cliff is 50.0 m above flat, horizontal beach. With what speed of impact does the stone land?
*September 26, 2008 by mb*

**Physics**

A student stands at the edge of a cliff and throws a stone horizontally over the edge with a speed of 19.0 m/s. The cliff is h = 50.0 m above a flat horizontal beach. With what speed and angle of impact does the stone land?
*February 13, 2010 by Ana*

**physics**

a stone is thrown vertically upward at a speed of 10 m/s from a cliff that is 95m high. How long will it take the stone to reach the bottom?
*October 26, 2015 by Anonymous*

**physics**

A student stands at the edge of a cliff and throws a stone horizontally over the edge with a speed of 18.0 m/s. The cliff is 50.0m above a flat, horizontal beach. With what angle of impact does the stone land (in degrees).
*September 25, 2008 by mb*

**Physics**

A stone is thrown at an angle of 30 degrees above the horizontal from the top of a cliff with an initial speed of 12 m/s. If it hits the ground 4.6 seconds later, what is the height of the cliff?
*November 3, 2012 by lily*

**Physics**

A stone is thrown at an angle of 30 degrees above the horizontal from the top of a cliff with an initial speed of 12 m/s. If it hits the ground 4.6 seconds later, what is the height of the cliff?
*November 3, 2012 by lily*

**physics**

A rock is thrown vertically upward from the edge of a cliff. The rock reaches a maximum height of 20.6 m above the top of the cliff before falling to the base of the cliff, landing 6.44 s after it was thrown. How high is the cliff?
*September 8, 2012 by Gary*

**physics**

A rock is thrown vertically upward from the edge of a cliff. The rock reaches a maximum height of 20.6 m above the top of the cliff before falling to the base of the cliff, landing 6.54 s after it was thrown. How high is the cliff?
*February 1, 2013 by Anonymous*

**Physics**

At t = 0, a stone is dropped from a cliff above a lake; 2.0 seconds later another stone is thrown downward from the same point with an initial speed of 33 m/s. Both stones hit the water at the same instant. Find the height of the cliff.
*September 13, 2010 by Hannah*

**physics**

At t = 0, a stone is dropped from a cliff above a lake; 2.1 seconds later another stone is thrown downward from the same point with an initial speed of 33 m/s. Both stones hit the water at the same instant. Find the height of the cliff
*September 14, 2011 by Ashley*

**physics **

A stone is thrown upwards from the edge of a 5.3 m high cliff. It just misses the cliff on the way down and hits the ground below with a speed of 25.4 m/s. With what velocity (in m/s) was it released?
*September 6, 2012 by Anonymous*

**Physics**

A hiker drops a heavy stone over a cliff and hears it strike the cliff base 2.8 seconds after dropping it. If the velocity of sound is 335 m/s, how high is the cliff?
*September 19, 2012 by John*

**physics**

A stone is thrown vertically upward with a speed of 10.0 m/s from the edge of a cliff 59.0 m high. How much later does it reach the bottom of the cliff? What is its speed just before hitting? What total distance did it travel?
*September 13, 2009 by Anonymous*

**physics**

a stone is thrown vertically upward with a speed of 10.5 m/s from the edge of a cliff 76.0 m high. how much later does it reach the bottom of cliff? what is its speed just before hitting? what total distance did it travel
*February 9, 2014 by jo*

**maths**

My kids are stuck on this they've no idea what to do and I can't help them out either! Darren throws a stone from the top of a vertical cliff into the sea below. The trajectory of the stone can be modelled by the quadratic equation y = -(x^2/3)+2x+24 where y represents the ...
*April 20, 2011 by elizabeth*

**birzit**

boy on the edge of a vertical cliff 20 m high throws a stone horizontally upwards with a speed of 25 m\s it strikes the ground at what horizontal distance from the foot of the cliff use g=10m\s^2
*April 12, 2014 by moath*

**Physics**

A stone is thrown vertically upward with a speed of 12.0 m/s from the edge of a cliff 85.0 m high (Fig. 2-34). (a) How much later does it reach the bottom of the cliff? (b) What is its speed just before hitting? (c) What total distance did it travel?
*September 23, 2010 by Amedus*

**physics**

A rock climber stands on top of a 56m -high cliff overhanging a pool of water. He throws two stones vertically downward 1.0s apart and observes that they cause a single splash. The initial speed of the first stone was 2.5(m/s) How long after the release of the first stone does...
*October 2, 2012 by Nicole*

**Physics**

A river flows off the top of a 61 m high vertical cliff. If the water is travelling at 3 m/s horizontally as it flows over the cliff edge then, neglecting air resistance, how far from the base of the cliff does it land?
*September 30, 2010 by Rebecca*

**Physics**

Two stones are dropped from the edge of a 60-m cliff, the seconds stone 1.6s after the first. How far below the top of the cliff is the second stone when the separation between the two stones is 36 m?
*September 2, 2012 by Anonymous*

**physics**

Two stones, A and B, are thrown horizontally from the top of a cliff. Stone A has an initial speed of 15 meters per second and stone B has an initial speed of 30 meters per second. Compared to the time it takes stone A to reach the ground, the time it takes stone B to reach ...
*November 18, 2013 by Anonymous*

**physics**

A ball is thrown horizontally from a cliff and hits the ground 4 seconds later 40 meters from the base of the cliff. How high was the cliff (rounded to the nearest tenth of a meter)?
*June 26, 2012 by willcosper*

**Physics**

You are standing on top of a building that is 75-m high and you throw a 4-kg stone horizontally at a speed of 6.6-m/s. How far from the base of the building will the stone land? (the ground is flat)
*March 6, 2013 by Leah*

**Physics**

You are standing on top of a building that is 75-m high and you throw a 3-kg stone horizontally at a speed of 5.4-m/s. How far from the base of the building will the stone land? (the ground is flat)
*March 11, 2013 by Josie*

**physics**

A stone is thrown horizontally at 30.0 m/s from the top of a very tall cliff. (a) Calculate its horizontal position and vertical position at 2-s intervals for the first 10.0s. (b) Plot your positions from part (a) to scale. Then connect your points with a smooth curve to show ...
*February 17, 2013 by samantha*

**physics**

c) A 0.26-kg rock is thrown vertically upward from the top of a cliff that is 32 m high. When it hits the ground at the base of the cliff the rock has the speed of 29 m/s. Assuming that the air resistance can be ignored, find i. the initial speed of the rock (5 marks) ii. the ...
*September 6, 2012 by charley*

**College Physics**

A students stands at the top of a high vertical cliff and throws calculators into the sea. He throws the calculators horizontally with a speed of 7.4 m/s and observes that each reaches the water below 3.7 s after the release. Neglect air resistance and find (a) How far from ...
*October 10, 2011 by Stephanie*

**Physics 1**

At t = 0, a stone is dropped from a cliff above a lake; 1.3 seconds later another stone is thrown downward from the same point with an initial speed of 33 m/s. Both stones hit the water at the same instant. Find the height of the cliff. No idea how to get the height. Help please!
*September 20, 2011 by PhysicsGuy*

**physics**

Two stones are thrown simultaneously, one straight upward from the base of a cliff and the other straight downward from the top of the cliff. The height of the cliff is 6.86 m. The stones are thrown with the same speed of 9.78 m/s. Find the location (above the base of the ...
*December 13, 2011 by chris*

**physics**

Two stones are thrown simultaneously, one straight upward from the base of a cliff and the other straight downward from the top of the cliff. The height of the cliff is 5.97 m. The stones are thrown with the same speed of 8.50 m/s. Find the location (above the base of the ...
*September 5, 2012 by Tracie *

**Physics**

Two stones are thrown simultaneously, one straight upward from the base of a cliff and the other straight downward from the top of the cliff. The height of the cliff is 6.82 m. The stones are thrown with the same speed of 9.83 m/s. Find the location (above the base of the ...
*September 30, 2012 by Bryan*

**physics**

Two stones are thrown simultaneously, one straight upward from the base of a cliff and the other straight downward from the top of the cliff. The height of the cliff is 5.16 m. The stones are thrown with the same speed of 8.67 m/s. Find the location (above the base of the ...
*September 21, 2013 by Jay*

**physics**

Two stones are thrown simultaneously, one straight upward from the base of a cliff and the other straight downward from the top of the cliff. The height of the cliff is 5.16 m. The stones are thrown with the same speed of 8.67 m/s. Find the location (above the base of the ...
*September 22, 2013 by I need help soon!!*

**Physics**

Two stones are thrown simultaneously, one straight upward from the base of a cliff and the other straight downward from the top of the cliff. The height of the cliff is 6.02 m. The stones are thrown with the same speed of 9.20 m/s. Find the location (above the base of the ...
*September 13, 2014 by Brandon *

**physics**

Two stones are thrown simultaneously, one straight upward from the base of a cliff and the other straight downward from the top of the cliff. The height of the cliff is 5.28 m. The stones are thrown with the same speed of 9.33 m/s. Find the location (above the base of the ...
*March 25, 2015 by Anonymous*

**Physics**

Two stones are thrown simultaneously, one straight upward from the base of a cliff and the other straight downward from the top of the cliff. The height of the cliff is 6.34 m. The stones are thrown with the same speed of 9.35 m/s. Find the location (above the base of the ...
*September 20, 2015 by Hannah*

**Physics **

Two stones are thrown simultaneously, one straight upward from the base of a cliff and the other straight downward from the top of the cliff. The height of the cliff is 6.41 m. The stones are thrown with the same speed of 8.35 m/s. Find the location (above the base of the ...
*October 1, 2015 by bob*

**physics**

1.A motorist drive along a straight road at a constant speed of 15.0 m/s.Just as she passes a parked motorcycle police officer,the officer starts to accelerate at 2.0 m/s^2 to overtake her. Assuming the officer maintains this acceleration, a) determine the time it takes the ...
*September 9, 2014 by Anonymous*

**physics**

1.A motorist drive along a straight road at a constant speed of 15.0 m/s.Just as she passes a parked motorcycle police officer,the officer starts to accelerate at 2.0 m/s^2 to overtake her. Assuming the officer maintains this acceleration, a) determine the time it takes the ...
*September 9, 2014 by Anonymous*

**physics**

A stone falls from rest from the top of a cliff. A second stone is thrown downward from the same height 3.3 s later with an initial speed of 64.68 m/s. They hit the ground at the same time. The acceleration of gravity is 9.8 m/s2 . How long does it take the first stone to hit ...
*September 19, 2011 by R*

**Physics**

Two stones are thrown simultaneously, one straight upward from the base of a cliff and the other straight downward from the top of the cliff. The height of the cliff is 6.80 m. The stones are thrown with the same speed of 9.05 m/s. Find the location (above the base of the ...
*October 1, 2012 by Jackie Li*

**physics**

A missile is fired horizontally with an initial velocity of 300 m/s from the top of a cliff 200.0 meters high. a. How long does it take the missile to reach the bottom the cliff? b. How far from the base of the cliff does the missile strike the ground?
*December 12, 2013 by sydney *

**physics**

A missile is fired horizontally with an initial velocity of 300 m/s from the top of a cliff 200.0 meters high. a. How long does it take the missile to reach the bottom the cliff? b. How far from the base of the cliff does the missile strike the ground?
*December 12, 2013 by louis*

**Physics**

The rock reaches a maximum height of 20.4 m above the top of the cliff before falling to the base of the cliff, landing 5.56 s after it was thrown. How high is the cliff?
*January 26, 2012 by Fletcher*

**Calculus (Vector-Valued Functions)**

"a ball is thrown horizontally from the top of a cliff 256 ft high with an intial speed of 50 ft/sec. find the time of flight of the ball and the distance from thr base of the cliff to the point where the ball lands"
*January 27, 2012 by TheThinker*

**physics**

A stone is thrown vertically upward with a speed of 11.5 m/s from the edge of a cliff 95.0 m high. (a) How much later does it reach the bottom of the cliff? (b) What is its speed just before hitting? (c) What total distance did it travel? For (c), the right answer is 108.46 m...
*October 11, 2010 by hana*

**physics**

A stone is thrown vertically upward with a speed of 11.5 m/s from the edge of a cliff 95.0 m high. (a) How much later does it reach the bottom of the cliff? (b) What is its speed just before hitting? (c) What total distance did it travel? For (c), the right answer is 108.46 m...
*October 11, 2010 by hana*

**physics**

A stone is thrown vertically upward with a speed of 11.5 m/s from the edge of a cliff 95.0 m high. (a) How much later does it reach the bottom of the cliff? (b) What is its speed just before hitting? (c) What total distance did it travel? For (c), the right answer is 108.46 m...
*October 11, 2010 by hana*

**phy**

A baseball is thrown horizontally from the top of a cliff 50 meters up. The initial velocity of the ball is 10 m/s. How far from the base of the cliff will the ball land?
*March 5, 2014 by Anonymous*

**physics**

Two stones are thrown simultaneously, one straight upward from the base of a cliff and the other straight downward from the top of the cliff. The height of the cliff is 6.82 m. The stones are thrown with the same speed of 8.88 m/s. Find the location (above the base of the ...
*January 24, 2015 by Syd*

**physics**

a projectile is fired at an angle of 27 above the horizontal from the top of a cliff 500 ft high. The initial speed of projectile is 1670 ft/s. How far will it move horizontally before hitting the level ground at the base of the cliff?
*August 9, 2015 by vien*

**physics**

A stone is dropped from the top of a cliff. It hits the ground below after 3.10 s. How high is the cliff?
*August 26, 2010 by ami*

**Physics**

A stone is dropped from the top of a cliff. It hits the ground below after 3.12 s. How high is the cliff? (in m)
*January 19, 2015 by Madison*

**Physics **

Two stones are thrown simultaneously, one straight upward from the base of a cliff and the other straight downward from the top of the cliff. The height of the cliff is 5.53 m. The stones are thrown with the same speed of 8.62 m/s. Find the location (above the base of the ...
*September 13, 2014 by Steven*

**physics**

A 0.26 kg rock is thrown vertically upward from the top of a cliff that is 32 m high. When it hits the ground at the base of the cliff the rock has a speed of 28 m/s. (a) Assuming that air resistance can be ignored, find the initial speed of the rock. (b) Find the greatest ...
*November 29, 2012 by jorge*

**Physics**

A stone is dropped from the top of a cliff. It is seen to hit the ground below after 3.90 s. How high is the cliff?
*October 23, 2010 by Jen*

**physics**

a stone is dropped from the top of a cliff. it is seen to hit the ground 3.5 seconds later. how high is the cliff
*October 13, 2015 by Anonymous*