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- A 97-kg sprinter wishes to accelerate from rest to a speedof 13 m/s in a distance of 22 m. (a) What coefficient of staticfriction is required between the sprinter’s shoes and the track?(b) Explain the strategy used to find the answer to part (a). Show your work and explain.1) A man pushes a 20.0 kg lawn mower with a force of 80.0 N directed along the handle, which is inclined at 30.0° to the horizontal as shown in the figure below. (a) If he moves at constant velocity, what is the impeding force due to the ground? (b) What force along the handle would produce an acceleration of 1.25 m/s' given the same impeding force? I need to show all work draw pictureA 5kg rifle is attached to a horizontal cable such that it will freely move neglecting friction. If the rifle is made to fire a 50g bullet with a muzzle velocity of 300m/s, what will be the velocity of the rifle as it moves opposite the direction of the bullet? 1.What is the correct formula to use to this sample problem? 2.What type of collision happen from the given situation of the sample problem? 3.Defend/Prove your answer for item number 2 4.Show your complete solution in calculating the Velocity of the Gun?
- When balls collide in a game of pool, the collision is almost perfectly elastic. Let us assume we have a perfectly elastic collision of two pool balls, one weighted heavier than the other, M1 = 0.175 kg and M2 = 0.250 kg. 1. Suppose the initial velocity of ball 1 is v1i = 1.2 m/s and the initial velocity of ball 2 is v2i = -0.5 m/s. Determine the initial momentum and kinetic energy. Show your work. 2. Determine the final velocities of the two balls v1i and v2i after this elastic collision. Show your work. 3. If the collision took place in 1/20 of a second, t = 0.05 s, determine the average magnitude of the normal force acting between the balls during the collision. Show your work.During an elastic collision, a proton with a velocity of 5000 m/s (forward) undergoes a head on collision with an alpha particle (composed of two protons and two neutrons) with a velocity of 2000m/s (backward). Determine the final velocities of the subatomic particles. Assume forward is positive. Show all your work please.A man whose mass is 80 kg and a women whose mass is 50 kg sit at opposite ends of a canoe 5m long, whose mass is 30kg. (a) Relative to the man, where is the center of mass of the system consisting of man, women, and canoe? (Hint: choose a specific coordinate system with a specific origin.) (b) Suppose that the man moves quickly to the center of the canoe and sits down there. How fr does the canoe move in the water? Explain your work and your assumptions.
- Instruction: I already have the answer in this problem but I can't understand some part of it. Look at the image posted to see what part I can't understand and please explain it. I can't understand "Part B". How did he came up with the formula, h3=e2h2? Topic: Impulse and Momentum A ball is dropped onto a horizontal floor. It reaches a height of 144 cm on the first bounce, and 81 cm on the second bounce. Find (a) the coefficient of restitution between the ball and floor and (b) the height it attains on the third bounce.a) CALCULATE the acceleration of a 300,000 kg jumbo jet, just before takeoff when the thrust of each of its 4 engines is 36,000 N. If the jumbo jet take off speed is 184 mph, b) CONVERT 184 mph to m/s and c) DETERMINE how many seconds would it take for the plane to reach this speed? Show your work and round your answer to the nearest hundredthSolve for the ff.: (Answers should be at 3 decimal places) a. What will the magnitude of the final velocity u2 and m2 after the collision. b. What will be the direction of motion β of m2 after the collision? c. What is the total kinetic energy of this system before the collision?
- Mechanic Physics: Please make sure this is right!! In the figure, block A (mass 1.6 kg) slides into block B (mass 2.9 kg), along a frictionless surface. The directions of velocities before and after the collision are indicated; the corresponding speeds are vAi = 5.7 m/s, vBi = 2.7 m/s, and vBf = 4.4 m/s. What is velocity vAf (including sign, where positive denotes motion to the right)?Water going over a fall splashes on the rocks 20 m below. (a) What is the water’s velocity at the bottom of the fall, assuming ? = 0 at the top? (b) If 20 kg of water flows over the fall per second, how much force do the rocks exert on the falling water? (Assume the water comes to a stop once it hits the rocks.) 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.There is a famous intersection in Kuala Lumpur, Malaysia, where thousands of vehicles pass each hour. A 750 kg Tesla Model S traveling south crashes into a 1250 kg Ford F-150 traveling east. What are the initial speeds of each vehicle before collision if they stick together after crashing into each other and move at an angle of 320 and a common velocity of 18 m/s. Draw a diagram and show all your work.