IPA hot-air balloon rises from the ground with a velocity of (3.00 m's s. Achampagne botle is opened to celebrate takeof, expeling the cork horizontally with a velocity of (5.00 m/s )t relative to the balloon. When opened, the bottie is 7.00 m above the ground." Part A What is the initial velocity of the cork, as seen by an observer on the ground? Enter your answers numerically separated by a comma. Submit Request Anewer Part B What is the speed of the cork, as seen by the same obsenver? Requent Anrwer Submit Part C What is its intial direction of motion, as seen by the same observer?

You are fixing the roof of your house when a hammer breaks loose and slides down. The roof makes an angle of 45° with the horizontal, and the hammer is moving at 5.5 m/s when it reaches the edge. Assume that the hammer is moving from the top of the roof to its right edge. Part A What is the horizontal component of the hammer's velocity just as it leaves the roof? Express your answer with the appropriate units. Enter positive value if the x-component of the velocity is to the right and negative value if the x-component of the velocity is to the left. V x = Submit Part B Vy = μÅ Submit Value Request Answer What is the vertical component of the hammer's velocity just as it leaves the roof? Express your answer with the appropriate units. Enter positive value if the direction of the y-component of the velocity is upward and negative value if the y-component of the velocity is downward. O μA Value Units Request Answer ? Units ?

They are both one question

Suppose a projectile is fired with initial speed v, and angle e above the horizontal. a) Understand and plan. Draw a picture, establish a coordinate system for this problem and label your diagram. Make a table of known/given information and unknown/wanted information (this may involve reading the rest of the problem before starting). b) Using Kinematics, derive a symbolic expression for the maximum height reached by the projectile. Check the physical units of your expression. c) Using Kinematics, derive a symbolic expression for the total time the projectile is in the air. Check the physical units of your expression. d) Using Kinematics, derive an expression for the magnitude and direction angle of the projectiles velocity a time t after the object is fired. Check the physical units of your expression. e) Suppose that the projectile is fired with an initial speed of v, = 46.6 m/s and 0 = 42.2°, what is the magnitude and direction angle of the projectile's velocity t = 1.50 s after…