Question

In: Physics

5. A stone is thrown up from the top of the architectural building of the Polytechnic...

5. A stone is thrown up from the top of the architectural building of the Polytechnic University, at an angle of 30.0 ° with the horizontal, and with an initial speed of 20.0 m / s, as shown in the figure. The height of the building is 45.0 meters.

a) How long does the stone take to reach the ground?
B) What is the rapidity of the stone just before hitting the ground?
c) Is it correct that the component v and of the final velocity be negative?
D) Is it correct that the final speed is greater than the initial speed of 20.0 m / s? (e) What would happen if a horizontal wind blows in the same direction in which the stone is thrown and causes it to have a horizontal acceleration component Ax= 0.500m/s ^ 2. Which part of this example, a) or b), will have a different answer?

Solutions

Expert Solution


Related Solutions

Problem A stone is thrown from the top of a building with an initial velocity of...
Problem A stone is thrown from the top of a building with an initial velocity of 24.3 m/s straight upward, at an initial height of 53.1 m above the ground. The stone just misses the edge of the roof on its way down, as shown in Figure 2.20. (a) Determine the time needed for the stone to reach its maximum height. (b) Determine the maximum height. (c) Determine the time needed for the stone to return to the height from...
A stone is thrown from the top of a building at an angle of -20.0 degrees...
A stone is thrown from the top of a building at an angle of -20.0 degrees relative to the horizontal with an initial velocity of 30.0 m/s. The building is 65.0 m tall. 1. Determine how long the stone is in the air 2. Determine the speed of the stone right before it hits the ground. 3. determine the angle of velocity with respect to the x-axis at impact. 4. Determine where the stone strikes the ground.
A stone is thrown vertically up from the top of a tower with a certain initial...
A stone is thrown vertically up from the top of a tower with a certain initial velocity. It reaches ground in t seconds .(7.65). A second stone, thrown down from the same tower with the same initial velocity reaches ground in 3.6 seconds. Determine (i) the height of the tower, and (ii) the initial velocity of the stones.                         
A rock is thrown from the edge of the top of a 5 m tall building...
A rock is thrown from the edge of the top of a 5 m tall building at angle of 45° above the horizontal. The rock strikes the ground a horizontal distance of 8 m from the base of the building. Assume that the ground is level and that the side of the building is vertical. Determine the speed with which the rock was throw
A ball is thrown from the top of a building at an angle of 30degrees above...
A ball is thrown from the top of a building at an angle of 30degrees above the horizontal and with an initial speed of 20m/s. if the ball is in flight for 4seconds A) how tall is the building? b)what horizontal distance does the ball travel? c) what maximum height does the ball reach? d)with what speed and angle of impact does the ball land?
A 2kg rock is thrown horizontally from the top of a building that is 20m high....
A 2kg rock is thrown horizontally from the top of a building that is 20m high. The rock’s initial horizontal velocity is 5m/s. When the rock is halfway to the ground, what is the net force on it (including direction)? How long did it take for the rock in problem 1 to hit the ground? How far from the base of the building did the rock in problem 1 hits?
a Ball is thrown upward from the top of a 23.5 m building with a speed...
a Ball is thrown upward from the top of a 23.5 m building with a speed of 12.4 m/s. ignore air resistance A) draw and label a figure with a coordinate system showing the balls initial position and initial velocity. B) write down the proper equations of motion and replace all known initial conditions and constant values with their appropriate numerical values to find the following C)to what maximum height above the ground will the ball rise? D) how much...
A ball is thrown straight up from the edge of the roof of a building. A...
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 1.20 s later. You may ignore air resistance. A) If the height of the building is 20.7 m , what must the initial speed be of the first ball if both are to hit the ground at the same time? B) Consider the same situation, but now let the initial speed v0 of the...
A 700 gram ball is thrown from the top of a 25 meter tall building. The...
A 700 gram ball is thrown from the top of a 25 meter tall building. The ball is thrown with an initial speed of 10 m/s at an angle 30 degrees above the horizontal. For our conservation of energy calculations, we will choose the Ball + Earth as our system and use the ground as h = 0. The kinetic energy of the ball when it is thrown =   J. When the ball reaches its highest point the kinetic energy is...
A ball is thrown vertically upward from the top of a building 112 feet tall with...
A ball is thrown vertically upward from the top of a building 112 feet tall with an initial velocity of 96 feet per second. The distance s  (in feet) of the ball from the ground after t seconds is s (t) = 112 + 96t - 16t2 Complete the table and discuss the interpretation of each point. t s(t) Interpretation 0 0.5 1 2 100 100 200 200 Answer these questions. After how many seconds does the ball strike the...
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT