- 3 Again Considering The First Question Now Imagine That The Ice Doesn T End At The Bottom Of The Hill The Truck Contin 1 (14.6 KiB) Viewed 21 times
- 3 Again Considering The First Question Now Imagine That The Ice Doesn T End At The Bottom Of The Hill The Truck Contin 2 (47.43 KiB) Viewed 21 times
- 3 Again Considering The First Question Now Imagine That The Ice Doesn T End At The Bottom Of The Hill The Truck Contin 3 (47.43 KiB) Viewed 21 times
- 3 Again Considering The First Question Now Imagine That The Ice Doesn T End At The Bottom Of The Hill The Truck Contin 4 (24.04 KiB) Viewed 21 times
- 3 Again Considering The First Question Now Imagine That The Ice Doesn T End At The Bottom Of The Hill The Truck Contin 5 (51.36 KiB) Viewed 21 times
- 3 Again Considering The First Question Now Imagine That The Ice Doesn T End At The Bottom Of The Hill The Truck Contin 6 (51.36 KiB) Viewed 21 times
- 3 Again Considering The First Question Now Imagine That The Ice Doesn T End At The Bottom Of The Hill The Truck Contin 7 (56.9 KiB) Viewed 21 times
2 Runaway ramps are necessary on roads with steep grades in the event of vehicular brake failure. Road grading is denoted as a percentage, such that the percentage equals rise over run times 100. In the image, the road has a 7% grade. 7% USE LOWER GEAR a) Find the angle of elevation in degrees (Practice your trig!) 4.01 deg b) If the road is covered in ice (that is, ignore friction), and a fully loaded semi truck (3.600E4 kg) starts at the top of the hill with zero speed and 112.3 m of elevation, calculate its speed at the bottom of the hill in m/s 46.92 m/s and mph 104.9 mph c) Find the change in kinetic energy of the truck. 3.962E7J d) Find the change in potential energy of the truck.-3.96E7 J e) Find the change in the total mechanical energy of this system. OJ f) How much work is done by gravity on the truck? 3.96E7 J 10 points Again considering the first question, now imagine that the ice doesn't end at the bottom of the hill; the truck continues sliding to an un-frozen 01
2 3 10 points Again considering the first question, now imagine that the ice doesn't end at the bottom of the hill; the truck continues sliding to an un-frozen runaway truck ramp (all of this is also considering the truck doesn't jack-knife) with a coefficient of 0.8000 as before and 7% grade. Find the new stopping distance of the truck. type your answer...... 10 points With regard to the previous question, consider that the ice ends just past the bottom of the hill and the truck stops sliding but begins to slow due to friction: If the truck's brakes are also frozen, determine the stopping distance of the truck if the coefficient of friction between the tires and road is 0.8000. type your answer... -p
la 10 points Runaway ramps are necessary on roads with steep grades in the event of vehicular brake failure. Road grading is denoted as a percentage, such that the percentage equals rise over run times 100. In the image, the road has a 7% grade. 7% USE LOWER GEAR a) Find the angle of elevation in degrees (Practice your trig!) 4.01 deg b) If the road is covered in ice (that is, ignore friction), and a fully loaded semi truck (3.600E4 kg) starts at the top of the hill with zero speed and 112.3 m of elevation, calculate its speed at the bottom of the hill in m/s 46.92 m/s and mph 104.9 mph c) Find the change in kinetic energy of the truck. 3.962E7 J d) Find the change in potential energy of the truck. -3.96E7 J e) Find the change in the total mechanical energy of this system. OJ f) How much work is done by gravity on the truck? 3.96E7 J
2 3 10 points Again considering the first question, now imagine that the ice doesn't end at the bottom of the hill; the truck continues sliding to an un-frozen runaway truck ramp (all of this is also considering the truck doesn't jack-knife) with a coefficient of 0.8000 as before and 7% grade. Find the new stopping distance of the truck. type your answer... 10 points With regard to the previous question, consider that the ice ends just past the bottom of the hill and the truck stops sliding but begins to slow due to friction: If the truck's brakes are also frozen, determine the stopping distance of the truck if the coefficient of friction between the tires and road is 0.8000. type your answer...