To get up on the roof, a person (mass 62.0 kg) places a 6.80 m aluminum ladder (mass 11.0 kg) against the house on a concrete pad with the base of the ladder 2.00 m from the house. The top of the ladder rests against a plastic rain gutter, which we can assume to be frictionless. The center of mass of the ladder is 2.00 m from the base, as measured along the ladder. The person is standing on the ladder 3.00 m from the base, as measured along the ladder. Find the normal reaction and friction forces (in N) on the ladder at its base. (Enter the magnitudes.)   normal reaction force  friction force

Q: A uniform rod has a mass of 5.0 kg and a length of 2.0 m.  At one end is attached a small 3.0 kg…

A:

Q: Problem 7:  Two children of mass 17 kg and 32 kg sit balanced on a seesaw with the pivot point…

A:

Q: A 90 kg man stands in a very strong wind moving at 14 m/s at torso height. As you know, he will need…

A: Given,           The mass of the man is, M=90 kg.           The speed of the wind is, v=14 m/s.…

Q: In the figure, the driver of a car on a horizontal road makes an emergency stop by applying the…

A:

Q: You sit 12m away from the center/ pivot of a Seesaw and your mass is 70 kg. Another person with mass…

A: The free-body diagram of the see-saw is shown below.

Q: A uniform 5.0 m long 25 kg plank is to hold two people washing windows on a downtown skyscraper. The…

A:

Q: - L - :2d- X-

A:

Q: A tightrope walker is walking between two buildings holding a pole with length ?=14.5 m and mass ?p…

A:

Q: our objects are held in position at the corners of a rectangle by light rods. m1 (kg) m2 (kg) m3…

A: Given:- Four objects are held in position at the corners of a rectangle by light rods. m1 (kg) m2…

Q: f mass M has an empty paint can of mass m hanging from one end. The meter stick and the can balance…

A: Given:-  The mass of the meter stick is M  The mass of the empty can is m hanging from one end.  The…

Q: You have been hired to design a family-friendly see-saw. Your design will feature a uniform board…

A:

Q: You have been hired to design a family-friendly see-saw. Your design will feature a uniform board…

A:

Q: A 120-kg refrigerator, 2.00 m tall and 85.0 cm wide has its center of mass at its geometrical…

A: Given:- The mass of the refrigerator is m=120 kg  The dimension of the refrigerator is h = 2.0 m…

Q: The meterstick shown is 100 cm long. It is free to pivot around its center of gravity (CG), which is…

A: We are given the meter scale. We are given a weight hanging on one side. We are also given distance…

Q: An object with mass 4.30 –kg is dropped 15.0 m above one end of a rod that pivots at the rod's…

A:

Q: A uniform, 20-kg, 8.0-m-long, wooden plank that is parallel to level ground is supported by two…

A:

Q: A crowd of innocent bystanders is under the far end of a beam that is hinged to the building and…

A:

Q: A 1.90-m-long barbell has a 21.0 kg weight on its left end and a 32.0 kg weight on its right end. If…

A:

Q: A 4.8 m ladder rests against a wall as shown. The ladder has a mass of 26.4 kg. A 57.6 kg person…

A:

Q: 340 660 3. The tasty fish pictured above has a mass of 1100 kg and is hanging from a cable attached…

A:

Q: Many aspects of a gymnast's motion can be modeled by representing the gymnast by four segments…

A:

Q: The femur of a human leg (mass 10 kg, length 0.9 m) is in traction, as shown in the figure. The…

A:

Q: Problem 3: A large airplane typically has three sets of wheels: one at the front and two farther…

A:

Q: Alice is going on a picnic and is aware that it will be easier to carry the picnic basket if it…

A:

Q: A homeowner is trying to move a stubborn rock from his yard. By using a a metal rod as a lever arm…

A: Given, d = 0.255 mmass of the rock, m 405 kgmaximum force applied on the other end of the rod, F=…

Q: A steel ladder of mass 40 kg and of length 20 m leans against a frictionless wall at a point 16 m…

A: Situation of the problem has been shown in the figure.

Q: At what position (measured from the 0 cm end of the meter stick) should a 0.22 kg mass be hung to…

A: Answer is 61 cm from 0 cm mark . Explanation   with answer is in next step.

Q: In the figure, a 18 kg block is held in place via a pulley system. The person's upper arm is…

A: Given that, in the figure, a 18 kg block is held in place via a pulley system. The person's upper…

Q: In the figure, a 18 kg block is held in place via a pulley system. The person's upper arm is…

A:

Q: In the figure, a 11 kg block is held in place via a pulley system. The person's upper arm is…

A: m=11 kgM=1.8 kgθ=30°d1=14 cm=0.14 md2=2.5 cm=0.025 md3=40 cm=0.4 mLet, force exerted by muscle and…

Q: To get up on the roof, a person (mass 70.0 kg) places a 6.00-m aluminum ladder (mass 10.0 kg)…

A: It is given that, m1=70 kgm=10 kgl1=4 ml2=3 ml=6 mg=9.8 m/s2

Q: To get up on the roof, a person (mass 70.0 kg) places a 6.00 m aluminum ladder (mass 10.0 kg)…

A: Given data: M=70.0 kg m=10.0 kg l=6 m x=2 m xcm=2m X=3 m where, M is the Mass of the person m Mass…

Q: A student stands on a platform that is free to rotate and holds two dumbbells, each at a distance of…

A:

Q: How far is the center of mass from the handle end of the club-ax? Express your answer in cm.

A: The Center of mass of a system of particles is a point in space such that the entire mass of the…

Q: A 2.0-m-long slab of concrete is supported by rollers, as shown. If the slab is pushed to the right,…

A: The distance the slab moved before its center of gravity is to the right of the contact point with…

Q: A large airplane typically has three sets of wheels: one at the front and two farther back, one on…

A: Consider equilibrium of aeroplane. Net torque about any point is zero.

Q: You have been hired to design a family-friendly see-saw. Your design will feature a uniform board…

A: Given data:Mass of the board, M = 7 kg.Length of the board, L =  7 mXoffset = 11 cm = 0.11 mMass of…

Q: An 85 kg man stands in a very strong wind moving at 14 m/s at torso height. As you know, he will…

A: a. Write the formula for the drag force acting on the man.

Q: John McClane, desperately trying to escape the bad guys in an upper floor of a skyscraper, grabs a…

A:

Q: You’re carrying a 3.6-m-long, 25 kg pole to a construction site when you decide to stop for a rest.…

A: L=3.6 mm=25 kgx=35 cm =0.35 m

Q: Ant-Man is walking around on top of a wooden plank that rests atop two thin, vertical steel pillars,…

A: Given data- Ant man mass m1=80.0 kg The plank mass is m2=11.7 kg length of plank L=2.44 m The…

Q: The meterstick shown is 100 cm long. It is free to pivot around its center of gravity (CG), which is…

A: Answer:   From the above-given data,   The figure can be redrawn as below:     Here,   The main…