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A 2790 lb car has a frontal cross-sectional area A of 21.1 ft2, a drag coefficient...
Hint: Use 1D relative velocity to find the velocity of the car with respect to the...
Hint: Use 1D relative velocity to find the velocity of the car
with respect to the air, which is used to find the drag force.
A 2520 lb car has a frontal cross-sectional area A of 20.0 ft2, a drag coefficient Cd of 0.25, and a drive (or tractive) force of 250 lbs. Assume an air density of 2.3x10-3 slug/ft3, Here is a list of frontal areas and drag coefficients for cars. This web site has interesting information on how...
Vector A (3 4j)ft. Vector B has a magnitude of 12 ft at an angle of...
Vector A (3 4j)ft. Vector B has a magnitude of 12 ft at an angle of 120 ° CCW from the x-axis. This problem DOES need to be written out for your portfolio NOTES IMAGES DISCUSS UNITS STATS HELP Part Description Answer Chk History Determine the x-component of A + 9.6 pts,96% # tries: 2 Show Details Format Check (include units with answer) 2% try penalty Hints: 0,1 Determine the magnitude of A + IB (include units with answer) 10...
A 36500 lb engine is pulling two freight cars up a 2.4 % incline. The weight...
A 36500 lb engine is pulling two freight
cars up a 2.4 % incline. The weight of the first freight car is
36500 lbs, and the weight of the second freight car is 10000 lbs.
The train is accelerating at 0.43 ft/s2 as it goes up the hill.
Oooooooo A 36500 lb engine is pulling two freight cars up a 2.4 % incline. The weight of the first freight car is 36500 lbs, and the weight of the second freight...
please do as many parts as possible. Thank you. 0.8 ft CM 3 1727 3.5 ft 13° 2. H0.42 43 A 258 pound safe containing $5...
please do as many parts as possible. Thank you.
0.8 ft CM 3 1727 3.5 ft 13° 2. H0.42 43 A 258 pound safe containing $5 million dollars is on an incline. Derek is pushing on the safe with a force of P. EXAMPLE 6 ft History Part Description Answer Chk What is the minimum force P Try 3 - your answer of 107lb is not correct. required to prevent the box from sliding down the incline? (include units with...
Part Description Answer Chk History 6.88 pts. 110% # tries: 0 show Details Format Check 2%...
Part Description Answer Chk History 6.88 pts. 110% # tries: 0 show Details Format Check 2% try penalty Vector A has a magnitude of 50 N and an angle θ of 300, what is the x-component of vector A? (include units with answer) Hints: 0,0 What is the y-component of vector A? (include units with answer) 6.88 pts. 110% # tries: 0 show Details Format Check 2% try penalty Hints: 0,0 2e 6.88 pts. 110% # tries: 0 show Details...
1728 18 CM = 0.49 A 286 pound safe containing $5 million dollars is on an...
1728 18 CM = 0.49 A 286 pound safe containing $5 million dollars is on an incline. Derek is pulling on the safe with a force of P EXAMPLE NOTES IMAGES DISCUSS UNITS STATS HELP Part Description Answer Chk History What is the minimum force P required to prevent the box from sliding down the incline? (include units with answer) 6.67 pts, 100% 12% try penalty # tries: 0 Show Details Format Check Hints: 0,0 What is the minimum force...
Part Description Answer Chk History Can the average velocity ever be greater than the average speed?...
Part Description Answer Chk History Can the average velocity ever be greater than the average speed? 4.4 pts, 110% 1. Yes 2. No 3. Depends on situation # tries: 0 show Details 33% try penalty Hints: 0.0 A car has a velocity of -45 ft/s and an acceleration of +3.7 ft/s2. The car is 4.4 pts. 110% B. # tries: 0 show Details 1. speeding up 2. slowing down 33% try penalty 3. moving at constant velocity Hints: 0,0 You...
2. 2.0 1737 Cup 4.0 m 30 ° Long Way /Short Way 2.0 m Tee In...
2. 2.0 1737 Cup 4.0 m 30 ° Long Way /Short Way 2.0 m Tee In the Thomas and Tibbits miniature golf tournament, you can either take the long way around the obstacle, or take the short way. Cooper takes three shots (as shown) to go the long way. This problem DOES need to be written out for your portfolio. EXAMPLE Determine the x-component of the 4.0 m vector at an angle of 30° E of 10 pts, 100% #...
11 .. I ry 2-your answer of -21.3 N is not correct. 6.6 pts, 106% 2%...
11 .. I ry 2-your answer of -21.3 N is not correct. 6.6 pts, 106% 2% try penalty | # tries: 2 Hints: 1,0 Format Check OK using first value as -21.3 N Show Details Vector D has a magnitude of 73 N and an angle θ of 270' What is the x-component of vector D? (include units with answer) A vector has an x-component of 11.3 m/s and a y-component of -7.4 m/s. Determine the magnitude of the vector....
A spring with a stiffness of 0.81 lb/in starts at its neutral position and is pulled...
A spring with a stiffness of 0.81 lb/in starts at its neutral position and is pulled back 4.0 inches. The spring is 598inch/s released to launch a 0.30 lb ball. All Format Check motion is along the horizontal direction and 8% of the initial elastic . sing potential energy is lost during the launch. Determine the launch speed of the ball (include units with answer) 9.4 pts,94% | 2% try penalty # tries: 3 | Show Details first value as...
Hint: Use 1D relative velocity to find the velocity of the car
with respect to the air, which is used to find the drag force.
A 2520 lb car has a frontal cross-sectional area A of 20.0 ft2, a drag coefficient Cd of 0.25, and a drive (or tractive) force of 250 lbs. Assume an air density of 2.3x10-3 slug/ft3, Here is a list of frontal areas and drag coefficients for cars. This web site has interesting information on how...
Vector A (3 4j)ft. Vector B has a magnitude of 12 ft at an angle of 120 ° CCW from the x-axis. This problem DOES need to be written out for your portfolio NOTES IMAGES DISCUSS UNITS STATS HELP Part Description Answer Chk History Determine the x-component of A + 9.6 pts,96% # tries: 2 Show Details Format Check (include units with answer) 2% try penalty Hints: 0,1 Determine the magnitude of A + IB (include units with answer) 10...
A 36500 lb engine is pulling two freight
cars up a 2.4 % incline. The weight of the first freight car is
36500 lbs, and the weight of the second freight car is 10000 lbs.
The train is accelerating at 0.43 ft/s2 as it goes up the hill.
Oooooooo A 36500 lb engine is pulling two freight cars up a 2.4 % incline. The weight of the first freight car is 36500 lbs, and the weight of the second freight...
please do as many parts as possible. Thank you.
0.8 ft CM 3 1727 3.5 ft 13° 2. H0.42 43 A 258 pound safe containing $5 million dollars is on an incline. Derek is pushing on the safe with a force of P. EXAMPLE 6 ft History Part Description Answer Chk What is the minimum force P Try 3 - your answer of 107lb is not correct. required to prevent the box from sliding down the incline? (include units with...
Part Description Answer Chk History 6.88 pts. 110% # tries: 0 show Details Format Check 2% try penalty Vector A has a magnitude of 50 N and an angle θ of 300, what is the x-component of vector A? (include units with answer) Hints: 0,0 What is the y-component of vector A? (include units with answer) 6.88 pts. 110% # tries: 0 show Details Format Check 2% try penalty Hints: 0,0 2e 6.88 pts. 110% # tries: 0 show Details...
1728 18 CM = 0.49 A 286 pound safe containing $5 million dollars is on an incline. Derek is pulling on the safe with a force of P EXAMPLE NOTES IMAGES DISCUSS UNITS STATS HELP Part Description Answer Chk History What is the minimum force P required to prevent the box from sliding down the incline? (include units with answer) 6.67 pts, 100% 12% try penalty # tries: 0 Show Details Format Check Hints: 0,0 What is the minimum force...
Part Description Answer Chk History Can the average velocity ever be greater than the average speed? 4.4 pts, 110% 1. Yes 2. No 3. Depends on situation # tries: 0 show Details 33% try penalty Hints: 0.0 A car has a velocity of -45 ft/s and an acceleration of +3.7 ft/s2. The car is 4.4 pts. 110% B. # tries: 0 show Details 1. speeding up 2. slowing down 33% try penalty 3. moving at constant velocity Hints: 0,0 You...
2. 2.0 1737 Cup 4.0 m 30 ° Long Way /Short Way 2.0 m Tee In the Thomas and Tibbits miniature golf tournament, you can either take the long way around the obstacle, or take the short way. Cooper takes three shots (as shown) to go the long way. This problem DOES need to be written out for your portfolio. EXAMPLE Determine the x-component of the 4.0 m vector at an angle of 30° E of 10 pts, 100% #...
11 .. I ry 2-your answer of -21.3 N is not correct. 6.6 pts, 106% 2% try penalty | # tries: 2 Hints: 1,0 Format Check OK using first value as -21.3 N Show Details Vector D has a magnitude of 73 N and an angle θ of 270' What is the x-component of vector D? (include units with answer) A vector has an x-component of 11.3 m/s and a y-component of -7.4 m/s. Determine the magnitude of the vector....
A spring with a stiffness of 0.81 lb/in starts at its neutral position and is pulled back 4.0 inches. The spring is 598inch/s released to launch a 0.30 lb ball. All Format Check motion is along the horizontal direction and 8% of the initial elastic . sing potential energy is lost during the launch. Determine the launch speed of the ball (include units with answer) 9.4 pts,94% | 2% try penalty # tries: 3 | Show Details first value as...
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