Please help me with the following questions.

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PHYS 2425 Student Worksheet Momentum Activity 1: Momentum Discussion 1 With your group members consider the following situation and discuss. You are playing a carnival game that requires you to knock over a wood post by throwing a ball at it. You're offered a very bouncy rubber ball and a very sticky clay ball of equal mass. You can throw them with equal speed and equal accuracy. You only get to throw one. a. Which ball will you choose? Why? b. Will both balls have the same initial momentum? If not, what is each of the initial momentums? c. If the clay ball sticks and the rubber ball bounces off with essentially no loss of speed. Will the balls have the same final momentum? If not, what is each of the final momentums? d. Do either of the balls experience a larger impulse during the collision? Explain. e. Using Newton's Third, the impulse that the ball exerts on the post is equal in magnitude, opposite in direction, to the impulse that the post exerts on the ball. Do either of the balls exert a larger impulse on the post? f. Using what you have learned, would you change the answer in part a? Activity 2: Momentum Problem With the people around you solve the problem: A 7.25 kg block of wood sits at the edge of a frictionless table, 2.15 m above the floor. A 0.425 kg blob of clay slides along the length of the table with a speed of 25.9 m/s, strikes the block of wood, and sticks to it. The combined object leaves the edge of the table and travels to the floor. What horizontal distance has the combined object traveled when it reaches the floor?PHYS 2425 Student Worksheet Energy Activity 1: Determine the Energy Transformations With the people around you determine the changes in energy for the following situations. Example: A car runs out of gas and coasts up a hill until finally coming to a stop. K - U or K +0=0+U 1. A ball starts from rest on the top of one hill, rolls without friction through a valley, and make it to the top of an adjacent smaller hill. 2. A brick is dropped from some height above a vertically position spring and compresses the spring to its maximum compression. 3. A block starting from rest slides down a ramp with friction. At the bottom the ramp levels out. 4. A cable wrench brings an elevator from the ground floor to the top floor. Activity 2: Problem With your group members solve the following problem: A 1660 kg rocket is to be launched with an initial upward speed of 56.0 m/s. In order to assist its engines, the engineers will start it from rest on a ramp that rises 530 above the horizontal. At the bottom, the ramp turns upward and launches the rocket vertically. The engines provide a constant forward thrust of 2000 N, and friction with the ramp surface is a constant 500 N. How far from the base of the ramp should the rocket start, as measured along the surface of the ramp? Rocket starts here. Rocket is launched 53 upward. Hints: Use the definition of work, W=F dcos(0) . Note the direction of the forces with respect to displacement. Write the vertical position in terms of the ramp distance using sin ( 0) = =