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Can u explain 11 and 12
11) When a football in a field goal attempt reaches...
(AYK-2 modified) Two identical stones are thrown from the top of a building, both with and...
(AYK-2 modified) Two identical stones are thrown from the top of a building, both with and then again without air resistance. Stone 1 is thrown straight up, and stone 2 is thrown straight down with the same initial speed as stone 1. Which of the following statements are true (select all which apply)? □ without air resistance, stone I will hit the ground with a faster speed than stone 2 when it hits the ground. without air resistance, stone I...
11. Suppose you throw a ball vertically downward with a speed of 49 m/s What would...
11. Suppose you throw a ball vertically downward with a speed of 49 m/s What would be the speed of the ball one second later? 39 m/s. Show calculation: (g = 9.8 m/s) 49 m/s. ) 58.8 m/s. () 10 m/s. () 10 m/s2. 12. What distance will it have travelled after one second? Show calculation: 13. A rifle bullet is fired horizontally at the same instant another bullet is allowed to drop from rest at th Which bullet strikes...
please explain III Which of the following is the correct graphical representation for C-(A-B)? (Symbols in bold type are vectors) IIII] When a ball is thrown vertically up with some initial speed...
please explain
III Which of the following is the correct graphical representation for C-(A-B)? (Symbols in bold type are vectors) IIII] When a ball is thrown vertically up with some initial speed it slows down as it moves up reaches a certain maximum height, and then falls straight down. Assume no air friction. During the trajectory of the ball in the air, which one of the following is true? lal The acceleration and velocity of the ball both increase on...
Question 2 A car is traveling to the left at 20 m/s and it is accelerating...
Question 2 A car is traveling to the left at 20 m/s and it is accelerating to the left at a constant rate. After 5 seconds of time, the car is traveling to the right at 5 m/s. a. What is the acceleration of the car? b. How far does the car travel over the 5 seconds? Question 3 A stone is thrown upward. When the stone is traveling downward with a speed that is twice that of the initial...
6. The tower of Pisa is 54.5 m tall. Assuming that Galileo dropped his object from...
6. The tower of Pisa is 54.5 m tall. Assuming that Galileo dropped his object from rest from the top of the tower and that the effects of air resistance were negligible, how long would it take the object to fall, in seconds? What is the velocity of the object when it hits the ground? 7. A ball is thrown directly downward with an initial speed of 9.50 m/s from a height of 30.0 m. After what time interval does...
Let's suppose for simplicity that the gravitational field strength is g = 10 m/s^2. A projectile...
Let's suppose for simplicity that the gravitational field strength is g = 10 m/s^2. A projectile is shot horizontally from a height of 30 meters, quite a way up. with initial speed v_0 = 10 m/s. It strikes the side of a tower after traveling a horizontal distance of 20 meters. Show your work. (a) at what height y above the ground does the projectile strike the tower? b) what are the vertical and horizontal components v_x, v_y of its...
A car traveling at 35 mi/h crashes into a tree. The front end of the car...
A car traveling at 35 mi/h crashes into a tree. The front end of the car compresses and the driver comes to rest after traveling 0.75 m. What was the magnitude of the average acceleration of the driver during the collision? Express your answer in terms of "gs", where 1g 9.80 m/s. Determine the time interval of the collision, in milliseconds. 6. The tower of Pisa is 54.5 m tall. Assuming that Galileo dropped his object from rest from the...
Can someone please work these step-by-step. I have the answers but needing to know how to...
Can someone please work these step-by-step. I have the
answers but needing to know how to work them.
5. A hammer is dropped from the top of a tower that is 400 m high. If we neglect air resistance so that the only force on the hammer is gravity, with what velocity does the hammer strike the ground? 6. A cowboy shoots a bullet straight up into the air with an initial speed of 800 m/s. If the bullet is...
18. A boat is able to move through still water at 20 m/s. It makes a...
18. A boat is able to move through still water at 20 m/s. It makes a round trip to a town 3.0 km upstream. If the river flows at 5 m/s, the time required for this round trip is: A)120s B) 150 s C)200 s D) 300 s E) 320 s 19. A toy racing car moves with constant speed around the circle shown below. When it is at point A its coordinates arex 0,y 3m and its velocity is...
Can someone answer question 10 for me please. ? 9. A projectile is launched at some...
Can someone answer question 10 for me please. ?
9. A projectile is launched at some angle to the horizontal with ong the perpen- some initial speed w; air resistance is negligible. (a) Is the pro- jectile a freely falling body? (b) What is its acceleration in the vertical direction? (c) What is its acceleration in the horizontal direction? ccelera- suming projec 10. A baseball is thrown from the outfield toward the catcher. When the ball reaches its highest point,...
(AYK-2 modified) Two identical stones are thrown from the top of a building, both with and then again without air resistance. Stone 1 is thrown straight up, and stone 2 is thrown straight down with the same initial speed as stone 1. Which of the following statements are true (select all which apply)? □ without air resistance, stone I will hit the ground with a faster speed than stone 2 when it hits the ground. without air resistance, stone I...
11. Suppose you throw a ball vertically downward with a speed of 49 m/s What would be the speed of the ball one second later? 39 m/s. Show calculation: (g = 9.8 m/s) 49 m/s. ) 58.8 m/s. () 10 m/s. () 10 m/s2. 12. What distance will it have travelled after one second? Show calculation: 13. A rifle bullet is fired horizontally at the same instant another bullet is allowed to drop from rest at th Which bullet strikes...
please explain
III Which of the following is the correct graphical representation for C-(A-B)? (Symbols in bold type are vectors) IIII] When a ball is thrown vertically up with some initial speed it slows down as it moves up reaches a certain maximum height, and then falls straight down. Assume no air friction. During the trajectory of the ball in the air, which one of the following is true? lal The acceleration and velocity of the ball both increase on...
Let's suppose for simplicity that the gravitational field strength is g = 10 m/s^2. A projectile is shot horizontally from a height of 30 meters, quite a way up. with initial speed v_0 = 10 m/s. It strikes the side of a tower after traveling a horizontal distance of 20 meters. Show your work. (a) at what height y above the ground does the projectile strike the tower? b) what are the vertical and horizontal components v_x, v_y of its...
A car traveling at 35 mi/h crashes into a tree. The front end of the car compresses and the driver comes to rest after traveling 0.75 m. What was the magnitude of the average acceleration of the driver during the collision? Express your answer in terms of "gs", where 1g 9.80 m/s. Determine the time interval of the collision, in milliseconds. 6. The tower of Pisa is 54.5 m tall. Assuming that Galileo dropped his object from rest from the...
Can someone please work these step-by-step. I have the
answers but needing to know how to work them.
5. A hammer is dropped from the top of a tower that is 400 m high. If we neglect air resistance so that the only force on the hammer is gravity, with what velocity does the hammer strike the ground? 6. A cowboy shoots a bullet straight up into the air with an initial speed of 800 m/s. If the bullet is...
18. A boat is able to move through still water at 20 m/s. It makes a round trip to a town 3.0 km upstream. If the river flows at 5 m/s, the time required for this round trip is: A)120s B) 150 s C)200 s D) 300 s E) 320 s 19. A toy racing car moves with constant speed around the circle shown below. When it is at point A its coordinates arex 0,y 3m and its velocity is...
Can someone answer question 10 for me please. ?
9. A projectile is launched at some angle to the horizontal with ong the perpen- some initial speed w; air resistance is negligible. (a) Is the pro- jectile a freely falling body? (b) What is its acceleration in the vertical direction? (c) What is its acceleration in the horizontal direction? ccelera- suming projec 10. A baseball is thrown from the outfield toward the catcher. When the ball reaches its highest point,...
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