Stand straight with your heels, back, and head against a wall. Bend forward from your waist, keeping your heels and bottom against the wall, to touch your toes. Can you do this without toppling over? Explain why and what you need to do to be able to touch your toes without losing your balance. Is it easier for a woman to do this?

Q: As a part of his daily workout routine, he lifts 10-kg dumbbells on each hand. His hands, and…

A: As a part of his daily workout routine, he lifts 10-kg dumbbells on each hand. His hands, and…

Q: What happens when the stress applied to the body is increased beyond the maximum value and is…

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Q: A 17.0 m tall hollow aluminum flagpole is equivalent in strength to a solid cylinder of aluminum…

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Q: A fireman at the scene of a fire is holding a heavy hose out of which water is gushing. To keep his…

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Q: The mechanism shown is used to lower handicapped persons into a whirlpool tub for therapeutic…

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Q: We have two masses balanced on a centered beam on a fulcrum. If m1 = 10 kg, and m2 = 20 kg, what…

A: Given data The first mass is: m1 = 10 kg The second mass is: m2 = 20 kg The length of the first arm…

Q: A uniform beam of length L= 0.18 m and mass mb=0.83 kg is pinned at one end to a vertical wall. A…

A: The weight of the beam acts on the midpoint of the beam at L/2, in downward direction. The tension…

Q: (II) How close to the edge of the 24.0-kg table shown in Fig. 9–54 can a 66.0-kg person sit without…

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Q: Wire Object 1 3 m Object 2 30° 7 m 1 m A homogeneous, 10 m-long beam has a total weight of 70 N and…

A: Given Data : The weight of the beam is given as W = 70 N. The weight of object 1 is given as W1 = 20…

Q: Create a simple balance using a ruler as the balance beam and a pencil as the fulcrum. Put 2 nickels…

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Q: object below has a uniform mass distribution, a=4 m , b = 8 m and  c = 16 m, find the centre of…

A: Given:- If the object below has a uniform mass distribution, a=4 m, b = 8 m, and  c = 16 m, Find:-…

Q: A person places a bathroom scale in the center of the floor and stands on the scale with his arms at…

A: The scale shows the reading of the reaction force. On raising the hand upward, the reaction force…

Q: Stand with your heels and back against a wall and try to bend over and touch your toes. You’ll find…

A: The COG (center of gravity) is the point on the body about which the body’s entire weight acts.

Q: During pregnancy, women often develop back pains from leaning backward while walking. Why do they…

A: To determine during pregnancy women often develop back pains from the leaning backwards

Q: Why must you bend forward when carrying a heavy load on your back?

A: The formula for the torque is: As a person carries a heavy load on his back and he doesn’t bend…

Q: Why must you bend forward while carrying a heavy load on your back?

A: It is very much advisable to bend forward while carrying a heavy load.

Q: As shown in the figure, a beam is supported by two pillars separated by a distance ℓ = 7.2 m. The…

A: (a) Draw the free-body diagram of the beam as shown below:

Q: Mountain roads are curved and not straight up the slope, why?

A: There are several reasons why roads on mountains are curved instead of straight. Design standards…

Q: A person places a bathroom scale in the center of the floor and stands on the scale with his arms at…

A: When we raise our arms upwards, we apply a force on them, directed upwards. By Newton's third law,…

Q: Why can’t you put your heels firmly against a wall and then bend over without falling?

A: When a person put heels firmly against a wall and then bend in the forward direction, the person…

Q: 2.6 m The centre of gravity of a loaded truck depends on how the truck is parked. If it is 4.0 m…

A: Solution: Given that truck is 4 m high and 2.6 m wide. Its CG is 2.4 m

Q: If you stand with your back and heels against a wall, and bend forward at the waist, you will topple…

A: When you are standing against a wall or otherwise the centre of gravity, (the point through which…

Q: Stand with your heels and back against a wall and try to bend over and touch your toes. You’ll find…

A: In order to stand with heels and back against the wall and then try to bend over and touch the toes,…

Q: A beam of mass 36 kg and length 5.2 m is leaning against a large cylindrical barrel so that it is…

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Q: QUESTION 2 B 30° A The 50 kg homogeneous smooth sphere rests on the 30 degree incline A and bears…

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Q: 4. The hanging mobile pictured above consists of two masses, m1 and m2, suspended from a uniform 10…

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Q: A person’s weight is 438 N is standing on a level floor and have a center of gravity that is 1.28 m…

A: Given data: Weight of the person, Wp=438 N Center of gravity of person, Xp=1.28 m Weight of his…

Q: What would happen if you removed the brass weight on the left? If the meter stick is not balanced,…

A: In the given experiment, the two brass weights on both sides of the meter stick along with the…

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Q: The left-hand end of a 2.50 kg rod with a 2.00 m length is attached to a vertical wall by a hinge. A…

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Q: V(N) 525 -x(m) -675 M(N-m) 300 X(m) The shear and moment diagrams are shown for a simply supported…

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Q: 2. A person could not balance her entire weight on the pointed end of a single nail, because it…

A: In case of the person lying on a bed of nails, consisting of a large number of nails, person's…

Q: Three identical coins lie on three corners of a square 10.0 cm on a side, as shown. Determine the x-…

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Q: A 20.0-kg box with a height of 80.0 cm and a width of 30.0 cm has a handle on the side that is 50.0…

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Q: When you carry a heavy load with one arm, why do you tend to hold your free arm away from your body?

A: - to shift the Centre of gravity of body away from load

Q: 30.0 cm Consider two identical, uniform, 30-cm-long wooden boards, stacked on top of each other, and…

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Q: The center of gravity of a loaded truck depends on how the truck is packed. If it is 4.0 m high and…

A: Consider the diagram showing the maximum possible angle of the ramp.

Q: A taho vendor carries a 1.5 m long light plank over his shoulder. At the ends of the plank are two…

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Q: My book has the answers as  a) 10N b) 196N But I can't figure out the proper way to work it out. I…

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Q: While on a camping trip, a man would like to carry water from the lake to his campsite. He fills…

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Q: If you are caught outdoors in a thunderstorm, why should you not stand under a tree? Can you think…

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Q: Using static equilibrium equations, find the three support forces (two at A, one at B).  e) Given…

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Torque

Torque is the rotational equivalent of linear force in physics and mechanics. Based on the course of study, it is also known as the moment of force, rotational force, or turning effect.