A 65 kg window cleaner uses a 14 kg ladder that is 4.2 m long. He...
A 65 kg window cleaner uses a 14 kg ladder that is 4.2 m long. He places one end on the ground 1.5 m from a wall, rests the upper end against a cracked window, and climbs the ladder. He is 3.4 m up along the ladder when the window breaks. Neglect friction between the ladder and window and assume that the base of the ladder does not slip. When the window is on the verge of breaking, what are (a) the magnitude of the force on the window from the ladder, (b) the magnitude of the force on the ladder from the ground, and (c) the angle (relative to the horizontal) of that force on the ladder?
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A 65 kg window cleaner uses a 14 kg ladder that is 4.2 m long.
He...
A 73 kg window cleaner uses a 12 kg ladder that is 5.6 m long. He...
A 73 kg window cleaner uses a 12 kg ladder that is 5.6 m long. He places one end on the ground 2.9 m from a wall, rests the upper end against a cracked window, and climbs the ladder. He is 2.6 m up along the ladder when the window breaks. Neglect friction between the ladder and window and assume that the base of the ladder does not slip. (a) When the window is on the verge of breaking, what...
A 71 kg window cleaner uses a 12 kg ladder that is 5.7 m long. He...
A 71 kg window cleaner uses a 12 kg ladder that is 5.7 m long. He places one end on the ground 3.2 m from a wall, rests the upper end against a cracked window, and climbs the ladder. He is 2.3 m up along the ladder when the window breaks. Neglect friction between the ladder and window and assume that the base of the ladder does not slip. When the window is on the verge of breaking, what are...
A 88 kg window cleaner uses a 10 kg ladder that is 7.3 m long. He places one end on the ground 4.5 m from a wall, rests the upper end against a cracked window, and climbs the ladder. He is 2.9 m up a...
A 88 kg window cleaner uses a 10 kg ladder that is 7.3 m long. He places one end on the ground 4.5 m from a wall, rests the upper end against a cracked window, and climbs the ladder. He is 2.9 m up along the ladder when the window breaks. Neglect friction between the ladder and window and assume that the base of the ladder does not slip. When the window is on the verge of breaking, what are...
A 63 kg window cleaner uses a 7.7 kg ladder that is 5.6 m long. He...
A 63 kg window cleaner uses a 7.7 kg ladder that is 5.6 m long. He places one end on the ground 3.2 m from a wall, rests the upper and against a cracked window, and climbs the ladder. He is 1.2 m up along the ladder when the window breaks. Neglect friction between the ladder and window and assume that the base of the ladder does not slip. When the window is on the verge of breaking, what are...
A 21.7 kg person climbs up a uniform ladder with negligible mass. The upper end of...
A 21.7 kg person climbs up a uniform ladder with negligible mass. The upper end of the ladder rests on a frictionless wall. The bottom of the ladder rests on a floor with a rough surface where the coefficient of static friction is 0.29. The angle between the horizontal and the ladder is 0. The person wants to climb up the ladder a distance of 1.2 m along the ladder from the ladder's foot. 2.9 m WWW +01 1.2 m...
A ladder whose length L is 12 m and mass m is 45 kg rests against...
A ladder whose length L is 12 m and mass m is 45 kg rests against a wall. Its upper end is a distance h of 9.3 m above the ground. The center of mass of the ladder is one-third of the way up the ladder. A fire fighter whose mass M is 72 kg climbs the ladder until his center of mass is halfway up. Assume the wall but not the ground is frictionless. What forces are exerted on...
A uniform ladder 5.0 m long rests against a frictionless, vertical wall with its lower end...
A uniform ladder 5.0 m long rests against a frictionless, vertical wall with its lower end 3.0 m from the wall. The ladder weighs 160 N. The coefficient of static friction between the foot of the ladder and the ground is 0.40. A man weighing 740 N climbs slowly up the ladder. What is the maximum frictional force that the ground can exert on the ladder at its lower end? What is the actual frictional force when the man has...
A 16.0-m uniform ladder weighing 400 N rests against a frictionless wall. The ladder makes an...
A 16.0-m uniform ladder weighing 400 N rests against a frictionless wall. The ladder makes an angle of 60.0 degree angle with the horizontal. A 700-N firefighter climbs 5.00 m up the ladder, Draw a free-body diagram for the ladder. Find the force exerted by the wall on the ladder If the ladder is just on the verge of slipping when the firefighter is 10.00m up, what is the coefficient of static friction between ladder and ground?
A 16.0 m uniform ladder weighing 480 N rests against a frictionless wall. The ladder makes...
A 16.0 m uniform ladder weighing 480 N rests against a frictionless wall. The ladder makes a 58.0 degrees angle with the horizontal. Find the horizontal and vertical forces the ground exerts on the base of the ladder when an 800 N firefighter is 3.80 m from the bottom. Magnitude of the horizontal force Your response differs from the correct answer by more than 100%. Direction away from the wall towards the wall Magnitude of the vertical force If the...
2 4.2 m A 55 kg person stands on a uniform 17 kg, 6.0 m long...
2 4.2 m A 55 kg person stands on a uniform 17 kg, 6.0 m long ladder resting against a frictionless wall EXAMPLE NOTES IMAGES DISCUSS UNITS STATS HELP Part Description Answer Chk History What is the magnitude of the force of the wall on ladder? (include units with answer) 6.67 pts. 100% 2% try penalty Hints: 2, # tries: 0 Show Details Format Check What is the magnitude of the normal force of the ground on ladder? (include units...
A 88 kg window cleaner uses a 10 kg ladder that is 7.3 m long. He places one end on the ground 4.5 m from a wall, rests the upper end against a cracked window, and climbs the ladder. He is 2.9 m up along the ladder when the window breaks. Neglect friction between the ladder and window and assume that the base of the ladder does not slip. When the window is on the verge of breaking, what are...
A 63 kg window cleaner uses a 7.7 kg ladder that is 5.6 m long. He places one end on the ground 3.2 m from a wall, rests the upper and against a cracked window, and climbs the ladder. He is 1.2 m up along the ladder when the window breaks. Neglect friction between the ladder and window and assume that the base of the ladder does not slip. When the window is on the verge of breaking, what are...
A 21.7 kg person climbs up a uniform ladder with negligible mass. The upper end of the ladder rests on a frictionless wall. The bottom of the ladder rests on a floor with a rough surface where the coefficient of static friction is 0.29. The angle between the horizontal and the ladder is 0. The person wants to climb up the ladder a distance of 1.2 m along the ladder from the ladder's foot. 2.9 m WWW +01 1.2 m...
A 16.0-m uniform ladder weighing 400 N rests against a frictionless wall. The ladder makes an angle of 60.0 degree angle with the horizontal. A 700-N firefighter climbs 5.00 m up the ladder, Draw a free-body diagram for the ladder. Find the force exerted by the wall on the ladder If the ladder is just on the verge of slipping when the firefighter is 10.00m up, what is the coefficient of static friction between ladder and ground?
A 16.0 m uniform ladder weighing 480 N rests against a frictionless wall. The ladder makes a 58.0 degrees angle with the horizontal. Find the horizontal and vertical forces the ground exerts on the base of the ladder when an 800 N firefighter is 3.80 m from the bottom. Magnitude of the horizontal force Your response differs from the correct answer by more than 100%. Direction away from the wall towards the wall Magnitude of the vertical force If the...
2 4.2 m A 55 kg person stands on a uniform 17 kg, 6.0 m long ladder resting against a frictionless wall EXAMPLE NOTES IMAGES DISCUSS UNITS STATS HELP Part Description Answer Chk History What is the magnitude of the force of the wall on ladder? (include units with answer) 6.67 pts. 100% 2% try penalty Hints: 2, # tries: 0 Show Details Format Check What is the magnitude of the normal force of the ground on ladder? (include units...
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