A rock dropped down a well takes 1.92 s to hit the water. How far below...
A rock is dropped from a bridge to the water below. It takes 2.4 s for the rock to hit the water. Express your answers in standard SI units. a. What is the speed of the rock as it hits the water? b. How far did the rock fall?
A rock is dropped from a bridge to the water below. It takes 3.20 s for the rock to hit the water. What is the speed of the rock when it reaches the water?
A woman drops a rock into a well. The woman hears the sound of the splash 1.50 seconds after releasing the rock. The speed of sound in the w is 336 m/s. a. Show a velocity-time graph for the rock as it falls from the surface down the well, and the sound of the splash as the sound comes up the well. b. How far below the top of the well is the surface of the water?
A rock is dropped from the top of a vertical cliff and takes 3.00 s to reach the ground below the cliff. A secon rock is thrown vertically from the cliff, and it takes this rock 2.00 s to reach the ground below the cliff from the time it is released. With what velocity was the second rock thrown, assuming no air resistance? Select one: a. 5.51 m/s downward , b. 4.76 m/s downward X O c. 12.3 m/s downward...
It takes 0.117 s for the rock to pass by a 1.80-m high window. How far from the top of the building is the top of the window? (Express your answer to three significant figures.)
a. An attacker at the base of a castle wall 3.65 m high throws a rock straight up with speed 7.40 m/s from a height of 1.55 m above the ground. Will the rock reach the top of the wall? If so, how fast is it moving when it reaches the top. If not, what initial speed must it have to reach the top? b. To defend the castle, a rock is thrown downwards from the top of the wall with...
a. An attacker at the base of a castle wall 3.65 m high throws a rock straight up with speed 7.40 m/s from a height of 1.55 m above the ground. Will the rock reach the top of the wall? If so, how fast is it moving when it reaches the top. If not, what initial speed must it have to reach the top? b. To defend the castle, a rock is thrown downwards from the top of the wall...
If an astronaut dropped a small rock near the surface of Pluto, how far (in m) would the rock fall in 2.2 s? (The mass of Pluto is 2.500×10-3 the mass of earth and the radius of Pluto is 0.18 of the earth's radius.)
On Mars, the acceleration due to gravity is 3.71 m/s2. How far would a rock fall in [Number 6.01] s if you dropped it on Mars?
A rock takes 3.2 s to hit the ground when it is thrown straight up from the cliff with an initial velocity of 8.4 m/s. Calculate the height of the cliff (in meters). Using that information, how long would it take to reach the ground if the rock is thrown straight down with the same speed?