1. A bullet leaves a 24 inch rifle barrel at 900 ft/s. What was its acceleration...
1. A bullet leaves a 24 inch rifle barrel at 900 ft/s. What was its acceleration and time in the barrel?
2. A train has an initial velocity of 54 mph. 4 minutes later it slows to a stop at an intersection. What is the acceleration? How far did it travel before coming to a stop?
Homework Answers
Use the following conversions
1kilometer=1000 meters
12inch=1foot
1hour=60 mins
1min=60 seconds
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1. A bullet leaves a 24 inch rifle barrel at 900 ft/s. What was
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4. For Remington BDL 700 rife, its parameter: barrel length 24 inch (558.8 mm), bullet velocity...
4. For Remington BDL 700 rife, its parameter: barrel length 24 inch (558.8 mm), bullet velocity is 820 need to calculate the acceleration of the bullet ( after you obtain the acceleration, you need to use the definition of acceleration to calculate t, what is t what is vi, finally you need multiple 10000 to the time you got. m/'s. If I fire 1000 cartridges (bullets),what is real usage time of the barrel? Recall our class notes, you in the...
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iPad 3:59 PM * 48%. 115:33:08 Exit 1 A rifle is fired straight up, and the bullet leaves the rifle with an initial velocity magnitude of 525 m/s. After 4.15 s, the velocity is 482 m/s. At what rate (in m/s2) is the bullet decelerated? (Recall that a negative sign denotes negative acceleration, or deceleration.) Enter answer 2 A rock thrown straight up climbs for 3.50 s, then falls to the ground. Neglecting air resistance, with what velocity (in m/s)...
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1. The velocity of an object traveling along the x-axis changes from 20 m/s to 60 m/s in 10 seconds. What was the displacement that occurred during this time? 2. An object moving along the x-axis initially has a velocity of 60 m/s and is slowing rest? down at the rate of 4 m/s per second. How far (in meters) will it travel before coming to 3. An accelerating object travels 12 meters from rest in a certain time. How...
Name: HW No 2 1. A darevevil plans to perform a very dangerous stunt by diving...
Name: HW No 2 1. A darevevil plans to perform a very dangerous stunt by diving (viz., falling) from a height of 11.9 m (above the water's surface) into a small pool filled with water to a depth of 30 cm. What minimum deceleration will be required (in the water) to advert certain, mortal failure? 2. (a) Determine the average number of g's experienced by someone abruptly coming to rest from an initial velocity of 30 mph (such as in...
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Please do #2 Name: HW No 2 1. A darevevil plans to perform a very dangerous...
Please do #2
Name: HW No 2 1. A darevevil plans to perform a very dangerous stunt by diving (viz., falling) from a height of 11.9 m (above the water's surface) into a small pool filled with water to a depth of 30 What minimum deceleration will be required (in the water) to advert certain, mortal failure? 2. (a) Determine the average number of g's experienced by someone abruptly coming to rest from an initial velocity of 30 mph (such...
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4. For Remington BDL 700 rife, its parameter: barrel length 24 inch (558.8 mm), bullet velocity is 820 need to calculate the acceleration of the bullet ( after you obtain the acceleration, you need to use the definition of acceleration to calculate t, what is t what is vi, finally you need multiple 10000 to the time you got. m/'s. If I fire 1000 cartridges (bullets),what is real usage time of the barrel? Recall our class notes, you in the...
iPad 3:59 PM * 48%. 115:33:08 Exit 1 A rifle is fired straight up, and the bullet leaves the rifle with an initial velocity magnitude of 525 m/s. After 4.15 s, the velocity is 482 m/s. At what rate (in m/s2) is the bullet decelerated? (Recall that a negative sign denotes negative acceleration, or deceleration.) Enter answer 2 A rock thrown straight up climbs for 3.50 s, then falls to the ground. Neglecting air resistance, with what velocity (in m/s)...
5. A car starting from rest moves in a straight line with a constant acceleration of 2.20 m's for 100 s,then slows down to a stop with a constant deceleration of 3.05 m/s. How far does it travel? meters 6. Two cars are traveling along a straight road. Car (A) maintains a constant spoed of 900 kmh: car (B) maintains a constant spoed of 101 km/h. Att0, car (B) is 450 km behind car A. How far will car (A)...
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Please do #2
Name: HW No 2 1. A darevevil plans to perform a very dangerous stunt by diving (viz., falling) from a height of 11.9 m (above the water's surface) into a small pool filled with water to a depth of 30 What minimum deceleration will be required (in the water) to advert certain, mortal failure? 2. (a) Determine the average number of g's experienced by someone abruptly coming to rest from an initial velocity of 30 mph (such...
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