011 (part 1 of 2) 10.0 points A 9.3 m ladder whose weight is 225 N...
014 (part 1 of 3) 10.0 points A ladder with a length of 11.5 m and weight of 544.0 N rests against a frictionless wall, making an angle of 60.0° with the horizontal. Find the horizontal force exerted on the base of the ladder by Earth when a firefighter weighing 817.0 N is 2.79 m from the bottom of the ladder. Answer in units of N. 015 (part 2 of 3) 10.0 points Find the vertical force exerted on the...
A ladder with a length of 10.8 m and weight of 595.0 N rests against a frictionless wall, making an angle of 60.0◦ with the horizontal. a. Find the horizontal force exerted on the base of the ladder by Earth when a firefighter weighing 761.0 N is 2.41 m from the bottom of the ladder. Answer in units of N. b. Find the vertical force exerted on the base of the ladder by Earth. Answer in units of N. c....
011 (part 1 of 2) 10.0 points Consider three charges arranged as shown. 8.9 uc + 3.7 IC -2.7 HC + -- — 4.8 cm — *2.1 cm What is the magnitude of the electric field strength at a point 1.9 cm to the left of the middle charge? The value of the Coulomb constant is 8.98755 10N·m²/C2. Answer in units of N/C. 012 (part 2 of 2) 10.0 points What is the magnitude of the force on a -2.7...
A uniform ladder stands on a rough floor and rests against a frictionless wall as shown in the figure. Since the floor is rough, it exerts both a normal force N, and a frictional force f on the ladder. However, since the wall is frictionless, it exerts only a normal force N, on the ladder. The ladder has a length of L = 4.65 m, a weight of W = 50.5 N, and rests against the wall a distance d...
A uniform ladder stands on a rough floor and rests against a frictionless wall as shown in the figure. Since the floor is rough, it exerts both a normal force n, and a frictional force r, on the ladder. However, since the wall is frictionless, it exerts only a normal force N, on the ladder. The ladder has a length of L = 4.3 m, a weight of w. = 67.5 N, and rests against the wall a distance d...
A uniform ladder stands on a rough floor and rests against a frictionless wall as shown in the figure. N2 mg d N. Since the floor is rough, it exerts both a normal force N, and a frictional force f, on the ladder. However, since the wall is frictionless, it exerts only a normal force N, on the ladder. The ladder has a length of L wall a distance d 3.75 m above the floor. If a person with a...
A uniform ladder stands on a rough floor and rests against a frictionless wall as shown in the figure mg N1 Since the floor is rough, it exerts both a normal force N and a frictional force f, on the ladder. However, since the wall is frictionless, it exerts only a normal force N2 on the ladder. The ladder has a length of L-4.5 m, a weight of wL-68.0 N, and rests against the wall a distance d 3.75 m...
006 (part 1 of 2) 10.0 points A ladder rests against a vertical wall. There is no friction between the wall and the ladder. The coefficient of static friction between the ladder and the ground is μ-0.581 Fu μ 0.581 Consider the following expressions: A1: f=Fe A2: f= For sin θ where the ground wall, f: force of friction between the ladder ar Fu: normal force on the ladder due to th 0: angle between the ladder and the groun...
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 stands on a rough floor and rests against a
frictionless wall as shown in the figure.
Since the floor is rough, it exerts both a normal force
N1
and a frictional force
f1
on the ladder. However, since the wall is frictionless, it
exerts only a normal force
N2
on the ladder. The ladder has a length of
L = 4.85 m,
a weight of
WL = 62.5 N,
and rests against the wall a distance
d...