Suppose you have a stack of 66 identical steel bars (steel bars have a mass of 1.50 kg each).  You are required to pull out bar number 44 from the stack (counting from the top of the stack down). Assuming that your assistant holds all other bars in place. If the coefficient of friction between steel and steel is 0.7100.710, how hard do you have to pull (in N)?

Q: In a two-dimensional tug-of-war, Alex, Betty, and Charles pull horizontally on an automobile tire at…

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Q: 20 kg box sits on a level floor. The box does not move until you push on it with a horizontal force…

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Q: A girl exerts a horizontal force of 109 N on a box with a mass of 30.7 kg. HINT (a) If the box…

A: Given mass of a box = 30.7 kg horizontal force applied = 109 N we have to calculate (a) magnitude of…

Q: Can someone help with this?

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Q: In a two-dimensional tug-of-war, Alex, Betty, and Charles pull horizontally on an automobile tire at…

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Q: An object is placed 65 cm from a glass lens (n = 1.52) with one concave surface of radius 23.0 cm…

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Q: You are holding a book of mass 10.7 kg that is initially at rest against a vertical wall by exerting…

A: Given,Mass, m = 10.7 kgFYb = 100.8 Nμs = 0.46μk =0.36

Q: You can hold your 2.5 kg textbook against the wall, preventing it from slipping down, if you press…

A: In the system , there are two forces acting on the textbook vertically, the gravitational force or…

Q: You managed to pull a heavy crate up a ramp on a truck. The crate has mass 50 kg. You were pulling…

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Q: I keep using the same formula and come up with 3.2 seconds. .64m/s x 5seconds?

A: Provided data: Here, u is the initial velocity, a is the acceleration, and t is the time.

Q: You managed to pull a heavy crate up a ramp on a truck. The crate has mass 48 kg. You were pulling…

A: Given data:  Mass of crate (m) = 48 kg Applied force (FA ) = 464 N Inclined angle (θ) = 29.5°…

Q: A worker pushes horizontally on a 36.0 kg crate with a force of magnitude 113 N. The coefficient of…

A: As per our guidelines, we can solve only 3 subparts. please resubmit remaining parts.

Q: A woman exerts a horizontal force of 109 N on a crate with a mass of 38.7 kg.   (a) If the crate…

A: Here, the free body diagram shows the horizontal force as FH  and  fs is the static friction, N is…

Q: he figure shows a section of a cable-car system. The maximum permissible mass of each car with…

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Q: A crate with a mass of m=254kg rests on the horizontal deck of a ship. The coefficient of static…

A: The objective of the question is to find the minimum force required to get the block moving from…

Q: A heavy sled is being pulled by two people, as shown in the igure. The coefficient of static…

A: Given:

Q: Mass mB = 25 kg is on a horizontal surface connected by a rope over a pulley to mass mA = 15 kg.…

A: mB = 25 kg  mA = 15 kg N is the normal force and fs is the static friction.

Q: You managed to pull a heavy crate up a ramp on a truck. The crate has mass 50 kg. You were pulling…

A: Force applied (F)= 480 N Coefficient of kinetic friction (µk)= 0.49 Mass of crate(m)= 50 kg Angle of…

Q: In a two-dimensional tug-of-war, Alex, Betty, and Charles pull horizontally on an automobile tire at…

A: Given :  Magnitude of Alex force, FA = 215 N Magnitude of Betty Force, FB = ? Magnitude of Charles…

Q: On her way to visit Grandmother, Red Riding Hood sat down to rest and placed her 1.20-kg basket of…

A: Mass of basket: m = 1.20 kg Force applied by wolf: FW = 6.40 N Angle between wolf force and…

Q: You managed to pull a heavy crate up a ramp on a truck. The crate has mass 47 kg. You were pulling…

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Q: A 2.30 kg block is initially at rest on a horizontal surface. A horizontal force F of magnitude…

A: Apply the force equilibrium condition along the vertical, and determine the normal reaction force as…

Q: Block m has a mass of 16 kg.  Block M has a mass of 88 kg.  If there is no friction between block M…

A: Mass of block m is m=16 kg. Mass of block M is M=88 kg. The coefficient of friction between block m…

Q: A worker pushes horizontally on a 37.0 kg crate with a force of magnitude 113 N. The coefficient of…

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Q: You can hold a book against the wall, preventing it from sliding down, if you press your hand…

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Q: is A heavy sled is being pulled by two people, as shown in the figure. The coefficient of static…

A: Given that, the coefficient of static friction μs=0.579 the coefficient of kinetic friction μk=0.419…

Q: Force T pulls at angle a up from the horizontal on a section of pipe of weight W as shown, but the…

A: Draw the free body diagram.

Newton's First Law of Motion

If a very smooth ball is rolled down an inclined surface with zero friction, the ball will continue to roll indefinitely for an infinite time, in an attempt to reach to the same height on the opposite hill!