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？

Expert Solution

On the motion of a horizontally thrown projectile

genius_generous answered 2 years ago

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 was thrown straight upward from the top of a building 120 ft high at...

a ball was thrown straight upward from the top of a building 120 ft high at a rate of 24 ft/s. answer the following questions (acceleration is -32 ft/s^2 ) a. at what time t does the ball reach its maximum height? b. what is the velocity of the ball at 3 seconds? c. how long does it take for the ball to hit the ground? d. what is the velocity of the ball when it hits the ground?

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?

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 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...

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...

Part I A ball is thrown straight up from the top of a building that is...

Part I A ball is thrown straight up from the top of a building that is 185ft high with an initial velocity of 64ft/s. The height of the object can be modeled by the equation s(t) = -16t 2 + 64t + 185. In two or more complete sentences explain how to determine the time(s) the ball is higher than the building in interval notation. Part II In two or more complete sentences, describe the transformation(s) that take place on...

A) a tiger leaps horizontally from a 7.5 m high rock with a speed of 3.0...

A) a tiger leaps horizontally from a 7.5 m high rock with a speed of 3.0 m/s. how far from the base of the rock will she land? B) how fast was the tigger moving when landed?

1. A ball is thrown from the top of a 50 m high cliff with a...

1. A ball is thrown from the top of a 50 m high cliff with a velocity of 10 m/s @ 30o. a. What is the time to the maximum height and what is the max height? b. How long does the ball take to hit the ground? c. What is the velocity of the ball when it hits the ground? d. What is the horizontal range when the ball hits the ground (total x)? 2. Consider the initial velocity...

Question