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A ladder 7.20 m long leans against a brick wall. If the ladder is inclined at...
A ladder 7.50 m long leans against the side of a house. If the ladder is...
A ladder 7.50 m long leans against the side of a house. If the ladder is inclined at an angle of 76.0° to the horizontal, what is the horizontal distance from the bottom of the ladder to the house (in m)?
A ladder 7.80m long leans against the side of a building. If the ladder is inclined...
A ladder 7.80m long leans against the side of a building. If the ladder is inclined at an angle of 77.0°to the horizontal, what is the horizontal distance from the bottom of the ladder to the building? m
A ladder 7.80 m long leans against the side of a building. If the ladder is...
A ladder 7.80 m long leans against the side of a building. If the ladder is inclined at an angle of 70.5° to the horizontal, what is the horizontal distance from the bottom of the ladder to the building?
please explain every step and keep a clear calligraphy . thanks ! 49. A ladder 5 m long leans against a vertical wall. If the bot tom of the ladder slides away from the base of the wall at a speed...
please explain every step and keep a clear calligraphy .
thanks !
49. A ladder 5 m long leans against a vertical wall. If the bot tom of the ladder slides away from the base of the wall at a speed of 0.3 m/s, how fast is the angle between the ladder and the wall changing when the bottom of the ladder is 4 m from the base of the wall?
49. A ladder 5 m long leans against a...
A ladder 23 feet long leans against a wall and the foot of the ladder is...
A ladder 23 feet long leans against a wall and the foot of the ladder is sliding away at a constant rate of 3 feet/sec. Meanwhile, a firefighter is climbing up the ladder at a rate of 2 feet/sec. When the firefighter has climbed up 6 feet of the ladder, the ladder makes an angle of ?/3 with the ground. Answer the two related rates questions below. (Hint: Use two carefully labeled similar right triangles.) (a) If h is the...
A ladder 5.00 m long leans against a wall inside a spaceship. From the point of...
A ladder 5.00 m long leans against a wall inside a spaceship. From the point of view of a person on the ship, the base of the ladder is 2.40 m from the wall, and the top of the ladder is 4.39 m above the floor. The spaceship moves past the Earth with a speed of 0.86c in a direction parallel to the floor of the ship. Find the angle the ladder makes with the floor, as seen by an...
A uniform stationary ladder of length L = 5.5 m and mass M= 11 kg leans against a smooth vertical wall
A uniform stationary ladder of length L = 5.5 m and mass M= 11 kg leans against a smooth vertical wall, while its bottom legs rest on a rough horizontal floor. The coefficient of static friction between floor and ladder is μ=0.35. The ladder makes an angle θ=54° with respect to the floor. A painter of mass 8M stands on the ladder a distance d from its base.Part (a) Find the magnitude of the normal force N, in newtons, exerted...
A ladder 5.90 m long leans against a wall inside a spaceship. From the point of...
A ladder 5.90 m long leans against a wall inside a spaceship. From the point of view of a person on the ship, the base of the ladder is 2.60 m from the wall, and the top of the ladder is 5.30 m above the floor. The spaceship moves past the Earth with a speed of 0.92c in a direction parallel to the floor of the ship. What is the length of the ladder as seen by an observer on...
5. A uniform 8.0 m long ladder of mass 10.0 kg leans against a wall. The...
5. A uniform 8.0 m long ladder of mass 10.0 kg leans against a wall. The wall is smooth and the floor is rough. The coefficient of static friction between the ladder and the floor is 0.35 (i) Draw a sketch and free body diagram. (ii) Find the reaction force from the wall. (iii) Find the normal force at the ground. (iv) Find the minimum angle at which the ladder does not slip.
A uniform 5-m long ladder weighing 80 N leans against a frictionless vertical wall. The...
A uniform 5-m long ladder weighing 80 N leans against a frictionless vertical wall. The foot of the ladder is 2 m from the wall. What is the minimum coefficient of static friction between the ladder and the floor necessary for the ladder not to slip?
please explain every step and keep a clear calligraphy .
thanks !
49. A ladder 5 m long leans against a vertical wall. If the bot tom of the ladder slides away from the base of the wall at a speed of 0.3 m/s, how fast is the angle between the ladder and the wall changing when the bottom of the ladder is 4 m from the base of the wall?
49. A ladder 5 m long leans against a...
5. A uniform 8.0 m long ladder of mass 10.0 kg leans against a wall. The wall is smooth and the floor is rough. The coefficient of static friction between the ladder and the floor is 0.35 (i) Draw a sketch and free body diagram. (ii) Find the reaction force from the wall. (iii) Find the normal force at the ground. (iv) Find the minimum angle at which the ladder does not slip.
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