A rock is thrown from the edge of the top of a 122 m tall building at some unknown angle above the horizontal. The rock strikes the ground a horizontal distance of 178 m from the base of the building 5.1 s after being thrown. Assume that the ground is level and that the side of the building is vertical. Determine the speed with which the rock was thrown.

Q: Problem 4: A person shoots a gun at a target that is 65 m away. The center of the target is at the…

A: Draw a diagram for better understanding Determine time of flight for bullet

Q: A ball launched with a speed of 42.0 m/s at an angle of 30.0 degrees above the horizontal strikes a…

A: Given, speed=42 m/s Angle=30 Wall is at 21 m Let the time of flight is T sec

Q: How far horizontally from the base of the building does the ball strike the ground?   (b) Find the…

A:

Q: In the winter sport of bobsledding, athletes push their sled along a horizontal ice surface and then…

A:

Q: A ball is tossed from an upper-story window of a building. The ball is given an initial velocity of…

A: The second equation of motion is  h = u t + 0.5 gt2 where, u is the initial  velocity, g is the…

Q: A diver springs upward from a diving board. At the instant she contacts the water, her speed is 8.20…

A:

Q: A quarterback throws a football with an initial velocity v at an angle θ above horizontal. Assume…

A:

Q: A soccer ball is kicked with a velocity of 8.9 m/s at an angle of 38° above the horizontal. The…

A:

Q: While competing in the long jump, a person leaps over a smooth horizontal sand surface. She lands on…

A: Given:- The landing velocity of the person is vf= 7.75 m/s  The angle of  land below the horizontal…

Q: What is the angle of the initial velocity?  Enter units as 'degrees'

A: Initial height=1m Time of ball up past the top of wall =1s Ball travelling distance D=62m.

Q: A forward kicks a soccer ball with an initial speed of 32.0 m/s from the ground at an angle 35.0…

A: U= 32 m/s  Angle is 35°

Q: An airplane takes off and flies upward at an angle of 19° with a constant speed of 272 m/s. While…

A: Given quantities: Speed of the airplane (u) = 272 m/s angle made by the airplane with the horizontal…

Q: In the figure, a stone is projected at a cliff of height h with an initial speed of 45.0 m/s…

A:

Q: A cannon ball is fired from the ground at an angle of 30.0 degrees with respect to the horizontal,…

A:

Q: An object is thrown from the ground with an initial velocity of 70 m/s and an angle of 40° with the…

A:

Q: Sean is a kicker for a college football team and is practicing kicking for an upcoming game. On one…

A: We ae given a kicker kicking the football. We are given initial velocity with which the ball is…

Q: An active volcano can eject red-hot rocks as it erupts. Suppose a large rock is ejected from a…

A:

Q: On the roof of a 78.4 m tall building, a worker pushes a brick off the edge of the roof with a…

A:

Q: A projectile is launched from ground level at an angle of 65 degrees above the horizontal, over flat…

A: Write the expression for maximum height .

Q: A solid metal ball is thrown from the top of a building at an angle of 20° above the horizontal with…

A: Given data : Initial speed, v0=15m/s Angle, θ=20o Time of flight, t=2.5s

Q: A tennis ball is struck and departs from the racket horizontally with a speed of 29.6 m/s. The ball…

A: Given Data:- Initial horizontal speed of the ball is vx=29.6 m/s Horizontal displacement of the ball…

Q: A projectile is launched with an initial speed of 45.0 m/s at an angle of 33.0° above the…

A: The initial speed of the projectile: The launch angle: Time period:

Q: Ax- What is the x component of the initial velocity? Provide your answer in m/s, Use 3 significant…

A: Horizontal velocity component  V = viCosΘ V =18.1Cos39.5 V = 13.96 m/s

Q: An artillery shell is fired with an initial velocity of 300 m/s at 52.0° above the horizontal. To…

A: The x component of the velocity is, vx0=v0cosθ=300 m/scos52°=184.7 m/s The y component of the…

Q: A boy stands on a fishing pier and tosses a pebble into a pond. The pebble is thrown from a height…

A: Draw the schematic arrangement of the system.

Q: The lob in tennis is an effective tactic when your opponent is near the net. It consists of lofting…

A: Given Data: Initial speed of the ball (uy) = 15.0 m/s.Angle of the ball (θ) = 50.0o.Horizontal…

Q: In the figure, a stone is projected at a cliff of height h with an initial speed of 41.0 m/s…

A:

Q: A ball is kicked with an initial speed of 20.0 m/s at an angle 30.0° above the horizontal. How long…

A:

Q: A2.7 kg ball is thrown upward with an initial speed of 20.0 m/s from the edge of a 45.0-m-high…

A:

Q: A projectile is launched with an initial speed of 23.4m/s at an angle of 36.4 degrees with respect…

A:

Q: An airplane with a speed of 80.6 m/s is climbing upward at an angle of 31.5° with respect to the…

A: The given speed of the plane is 80.6 m/s and the angle of climbing is u = 31.5o  The height of…

Q: You are standing 18.0 meters away from a building, which is 15.0 meters tall and has a large, flat…

A: In x direction  Vx = ux = 22.5 Cos55 = 12.9 m/s Now in y direction  uy = 18.43 m/s  Sy = 15-1.5 =…

Q: A firework shell is shot into the air with an initial speed of 60.0 m/s at an angle of 80.0° above…

A: Given u = 60m/s theta = 80degree a)Time of flight at highest point  T is the time V=0 V = usintheta…

Q: A projectile is launched with an initial velocity of 30.5 m/s at 62.3 degrees with respect to the…

A:

Q: A frightened rabbit moving at 6.00 m/s due east runs onto a large area of level ice of negligible…

A: a) After 3rd seconds, the rabbit has a velocity in the y direction,

Q: A dart is thrown at a dartboard 2.90 m away. When the dart is released at the same height as the…

A:

Q: In the Olympic shot-put event, an athlete throws the shot with an initial speed of 12 m/s at an…

A: Given: The initial velocity of the shot is 12 m/s. The shot leaves the hand at a height of 1.40 m.…

Projectile Motion