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- We have an optional assignment for physics, shown below. I've already worked out the problems, but I'm not sure if I'm doing them correctly. I would really appreciate it if someone could explain how to solve the four questions below, as well as the principles behind them. Thank you!Please help me with both of the following questions. 1. How fast must a 250. gram cart be traveling to have a momentum of .450 kgm/s? 2. If the above ball comes to rest in the catcher’s mitt in .085 seconds, how much force does the ball apply on the catcher’s mitt? (hint: use the impulse-momentum theorem )A kid throws a water balloon at a high wall. The balloon hits a 7.0 m high spot on the wall with a speed of 6.5 m/s. How fast does the kid throw the balloon? please show your work, including diagrams, algebraic equations, and enough written explanations that somebody who is not familiar with the problem could understand what you are doing.
- What is your conclusion? Ps. Context and Answer is provided, I just need a conclusion.As a technical engineer in the army, you are part of a team in charge of testing and commissioning a new tankrecently purchased by the artillery.Field testing has revealed the following information:1) The tank moves from rest to a speed of 70 ??/ℎ? in 10 seconds.2) Using the breaking system, the tank is brought to a complete stop from a speed of 70 ??/ℎ? in 5 seconds.You are required to address all the questions below providing all calculations, graphs, and explanations asappropriate to back your answers The tank is to be placed on a hill that is 1 km high above the ground. The enemy’s base is located at a horizontaldistance of 10 km away and it is in a valley 0.5 km below the ground. Air resistance is neglected. Gravitationalacceleration is constant and equal to 9.8?/?2 downwards.a) If the bomb is to be fired perfectly horizontally, what should the launching speed of the bomb be in order tohit the target?b) What is the duration it would take the bomb to hit the target?c) Find x(t) and…Solve numbers 1-3 with a full solution. 1. Compare the momentum of a 2000kg van moving at 30 m/s with a 5000kg truck moving at 12 m/s. 2. A 300 N force applied to an object for 10s. What is the impulse of the object?3. What is the momentum of a 1000kg car moves at 20 m/s?
- Hi, please show full solutions and also explain how you get the answers in physics terms so it's understandable. The correct final answers are written beside too. Thank you. 13. A ball of mass m, is stationary when a ball of mass 2m collides with it travelling with a speed of v. If the collision between the 2 balls is completely inelastic, show that the final velocity of the balls is 2/3 v.Assuming we take several trials where the total mass ?1+?2 is constant, but we redistribute themasses between ?1 and ?2. The equation you derived as your answer to the Problem (2) would apply. (a) Assume that we took these trials and plottedthe difference in the weights,??−??, on the ?-axis and the accelerationon the ?-axis. What would be the theoretical value–that is, in terms of other known quantities –of the slope?(Once again, you can think of this in terms of your equation answer to the previous problem. (b) For the same plot, what would be the theoretical value of the intercept? (c)Now consider if there were another constant force in the equation, such as friction. What would the theoretical value of the interceptbe in this case? (justify)What is meant by instantaneous velocity, average velocity and final velocity?Define acceleration, force, energy, potential energy and kinetic energy and write the formula for each.A force is a vector quantity capable of producing motion or a change in motion, that is, a change invelocity or an accelerationWhat are the units of force and energy in CHS, MKS, and FPS units?What is static friction and what is kinetic friction?Explain the law of conservation of energy.
- 2. A ball of mass 0.26 kg is dropped from a height of 2.0 m. It hits the ground and rebounds to a height of 1.4 m. a) What was the ball’s velocity and momentum immediately before hitting the ground? (b) What was the ball’s velocity and momentum just as it left the ground? (c) What was the impulse applied to the ball from hitting the ground? Take g = 9.81 m/s2 and show all your work(Indicates a review question, which means it requires only a basic understanding of the material to answer. Questions without this designation typically require integrating or extending the concepts presented thus far.) What is the distinction between speed and velocity? Describe a situation in which an object's speed is constant but its velocity is not.Use the worked example above to help you solve this problem. Two billiard balls of identical mass move toward each other as shown in the figure. Assume that the collision between them is perfectly elastic. If the initial velocities of the balls are v1i = +25.2 cm/s and v2i = −20.3 cm/s, what are the velocities of the balls after the collision? Assume friction and rotation are unimportant. (Indicate the direction with the sign of your answer.) v1f = v2f =
