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- Please see attached photo. I am confused as to how they got the i value mostly. I think c threw me off ( i used 31cos270 to try to find the value= -31) so please eloaborate on that. I kept getting 33 or 34 for the i value. I got 87 for the j value so I think i did that part correctly?Find the velocity at any time t of a 6 kg of box free-falling against air resistance of 0.005 v which is in m/s if the box is thrown initially at rest. Find the acceleration after 2.5 seconds. USE DIFFERENTIAL EQUATIONS show complete solutions with fbd original work pleaseA 22-g bullet traveling 240 m/s penetrates a 2.0-kg block of wood and emerges going 150 m/s. If the block is stationary on a frictionless surface when hit, how fast does it move after the bullet emerges? 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.
- 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)?Please make the solution and final answer handwritten. Thank you! Rate will be given A lump of clay of mass 0.24 kg is dropped from a height of 8.1 m. The clay comes to a full stop 0.068 s after the moment it first touched the ground. What is the magnitude in newtons of the average force of impact that the clay experienced? Express your answer in two decimal places, with units of Newtons.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)
- Needed to be solved part 4 and 5 correclty in 20 minutes and get the thumbs up please show neat and clean workUse 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 =Please help me undestand the concepts of working out these type of practice problems. Thank you
- Read and understand the following word problemsbelow. Please be reminded in showing the required, given, solution, andconclusion. Moreover, never forget to include the appropriate units allthroughout your solution and to consider the appropriate significant figure inyour final answerDuring 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.help please. If a 1467 kg car, moving at 9 m/s north, hits and sticks to a 2237 kg truck, moving at 10 m/s south, and they travel off together at the same speed, find that speed. Hint: here the masses are moving in opposite directions, so the velocities should have opposite signs. Call North positive and South negative. Use the "hit and stick" or inelastic formula Also, a positive answer would indicate motion to the north and a negative answer would show southward motion - leave positive/negative in your answer.