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Figure 8-54 shows a World War I cannon mounted on a
Chapter , Problem 104(choose chapter or problem)
Figure 8-54 shows a World War I cannon mounted on a railcar and set so that it will project a shell at an angle of 30 above the horizontal. With the car initially at rest on a horizontal frictionless track, the cannon fires a 200-kg projectile at (All values are for the frame of reference of the track.). (a) Will the vector momentum of the carcannonshell system be the same just before and just after the shell is fired? Explain your answer. (b) If the mass of the railcar plus cannon is what will be the recoil velocity of the car along the track after the firing? (c) The shell is observed to rise to a maximum height of as it moves through its trajectory. At this point, its speed is On the basis of this information, calculate the amount of thermal energy produced by air friction on the shell from the cannons mouth to this maximum height.
Questions & Answers
QUESTION:
Figure 8-54 shows a World War I cannon mounted on a railcar and set so that it will project a shell at an angle of 30 above the horizontal. With the car initially at rest on a horizontal frictionless track, the cannon fires a 200-kg projectile at (All values are for the frame of reference of the track.). (a) Will the vector momentum of the carcannonshell system be the same just before and just after the shell is fired? Explain your answer. (b) If the mass of the railcar plus cannon is what will be the recoil velocity of the car along the track after the firing? (c) The shell is observed to rise to a maximum height of as it moves through its trajectory. At this point, its speed is On the basis of this information, calculate the amount of thermal energy produced by air friction on the shell from the cannons mouth to this maximum height.
ANSWER:Step 1 of 7
(a) Our system is composed of the cannon, shell, railcar and the frictionless track, we can quantify or express each momentum in relation to one another on the horizontal axis.