A ladder 5 meter long leans against the wall of an apartment house forming an angle of 50 degrees, 32 minutes with the ground
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 10 meter long ladder leans against the wall as shown. If the ladder weighs 200 N and there is just enough frictional force to allow a 800 N person to climb to the top safely, what is ømin? Note: µFloor=0.675.
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.
Slipping Ladder. A ladder of length 6 m and mass 15 kg leans against a wall at an angle 30° with respect to the wall. The ladder is frictionless against the wall but against the ground it has js = 0.4. How high can a 70 kg person climb before the ladder slips?
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 7.20 m long leans against a brick wall. 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 wall (in m)?
(2-3) A 3.0 m long ladder leans against a frictionless wall at an angle of 60° as shown. Assume the ladder is uniform with its center of mass at its geometrical center and that it is in equilibrium. 2. Which forces cancel/force cancels the weight of the ladder? a. The normal force exerted on the ladder by the floor. b. Both the normal force exerted on the ladder by the floor, and the frictional force exerted on the ladder by...
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 48.2 kg, 3.1 m uniform ladder leans against a frictionless wall. A 97.8 kg person is standing on the ladder down 0.96 m from the top of the ladder. The ladder makes an angle of 57 degrees with the horizontal. What is the minimum coefficient of static friction between the ladder and the ground so that the ladder does not slip?
A uniform 7.7 m long ladder of mass 18 kg leans against a smooth all (so that the force exerted by the wall on the ladder is perpendular to the wall). The ladder makes an angle of 18 degrees with the vertical wall and the ground is rough. (a) Calculate the force exerted by the wall on the ladder. N (b) Calculate the x-component of the force exerted by the ground on the ladder at its base. N (c) Calculate...