A ball is thrown straight downward with an initial speed of 6.43 from the roof of a building. It hits the ground a time of 1.14s after it is thrown. Ignore air resistance. The height of the building is _m. Express your answer as a positive number.
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- A small rock is thrown straight up from the edge of the roof of a building. Air resistance can be neglected. The rock travels upward and then descends to the ground, missing the roof on the way back down. The maximum height that the rock reaches above the roof is 8m. The rock reaches the ground at 4s after it was thrown. What is the height of the building?A ball is thrown straight up from the edge of the roof of a building. A second ball is dropped from the roof a time of 1.12 s later. You may ignore air resistance. If the height of the building is 20.4 m, what must the initial speed be of the first ball if both are to hit the ground at the same time? Consider the same situation, but now let the initial speed v0 of the first ball be given and treat the height h of the building as an unknown. What must the height of the building be for both balls to reach the ground at the same time for v0 = 8.50 m/s. If v0 is greater than some value vmax, a value of h does not exist that allows both balls to hit the ground at the same time. Solve for vmax. If v0 is less than some value vmin, a value of h does not exist that allows both balls to hit the ground at the same time. Solve for vmin.A small rock is thrown vertically upward with a speed of22.0 m/s from the edge of the roof of a 30.0-m-tall building. The rockdoesn’t hit the building on its way back down and lands on the streetbelow. Ignore air resistance. What is the speed of the rock just before it hits the street?
- You decide to drop a water balloon on a friend as a horribly inconsiderate prank that they shall never forgive you for. You climb onto an overpass near their favorite bike trail and release the balloon from rest some 7.7 m above the ground. If your friend is riding their bike at 11.4 m/s, how far out must they be from the overpass when you drop it? Assume your result is in m. DO NOT include units with your numerical answer.If you toss a ball upward with a certain initial speed, it falls freely and reaches a maximum height h at a time t after it leaves your hand. Suppose you throw the ball upward with double the initial speed. What new maximum height does the ball reach? O (1.41)h O 8h O 16h O 2h O 4hA small rock is thrown vertically upward with a speed of 14.0 m/s from the edge of the roof of a 39.0 m tall building. The rock doesn't hit the building on its way back down and lands in the street below. Air resistance can be neglected.
- A juggler throws a beanbag straight up into the air with initial speed 6.00 m/s. The beanbag leaves the juggler's hand 1.50 m above the floor. The juggler fails to catch the beanbag as it falls to the floor. (a) How long is the beanbag in the air? (b) What is its impact speed?A juggler throws a bowling pin straight up with an initial speed of 7.9m/s from an initial height of 3.9m. How much time elapses until the bowling pin returns to the same initial height.While standing at the edge of the roof of a building, a man throws a stone upward with an initial speed of 6.61 m/s. The stone subsequently falls to the ground, which is 17.3 m below the point where the stone leaves his hand. At what speed does the stone impact the ground? Ignore air resistance and use ?=9.81 m/s2 for the acceleration due to gravity. A) Impact speed: _________________________ m/s B) How much time is the stone in the air? elapsed time: ____________ s
- A rock is thrown vertically upward with a speed of 13.0 m/sm/s from the roof of a building that is 70.0 mm above the ground. Assume free fall. What is the speed of the rock just before it strikes the ground? I will rate accordingly with multiple votes. Please do it correctly.A boy uses a slingshot to launch a pebble straight up into the air. The pebble reaches a height of 39.0 m above the launch point 0.7 seconds later. Assume air resistance is negligible. (a) What was the pebble's initial speed in m/s (just after leaving the slingshot)? m/s (b) How much time did it take (in s) for the pebble to first reach a height of 19.5 m above its launch point?Problem 2: An object is thrown from the top of a building that is 16.4 m high. The object is thrown with a velocity of 7.3 m/s. Part (a) How high above the ground does the object go? Numeric : A numeric value is expected and not an expression. h = Part (b) How long is it in the air in seconds? Numeric : A numeric value is expected and not an expression. t = Part (c) What is the velocity of the object in m/s after 0.5 s? Numeric : A numeric value is expected and not an expression. v = Part (d) What is the velocity of the object in m/s after 1.5 s? Numeric : Anumeric value is expected and not an expression. V = Part (e) What is the velocity of the object in m/s when it reaches the bottom? Numeric : A numeric value is expected and not an expression. V =