Physics Physics Practice Problems Solutions Library

# Forces in Connected Objects (Systems) Solutions Library

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27 solutions

Forces in Connected Objects (Systems)

#### Q. A 1200kg car pushes a 2100kg truck that has a dead battery to the right. When the driver steps on the accelerator, the drive wheels of the car push...

Solved • Jan 11, 2021

Forces in Connected Objects (Systems)

#### Q. The hand in the figure is pushing on the back of block A. Blocks A and B, with mB&gt;mA, are connected by a massless string and slide on a friction...

Solved • Dec 17, 2020

Forces in Connected Objects (Systems)

#### Q. A 1260 -kg car is pushing an out-of-gear 2200 -kg truck that has a dead battery. When the driver steps on the accelerator, the drive wheels of the ...

Solved • Sep 30, 2020

Forces in Connected Objects (Systems)

#### Q. A load of bricks with mass = 15.0 kg hangs from one end of a rope that passes over a small, frictionless pulley. A counterweight of mass = 27.6 kg ...

Solved • Sep 28, 2020

Forces in Connected Objects (Systems)

#### Q. Two blocks of unequal mass are tied together with a massless string that does not stretch and connected via a frictionless and massless pulley. Mas...

Solved • Jul 14, 2020

Forces in Connected Objects (Systems)

#### Q. Two blocks are connected by a massless rope. The rope passes over an ideal (frictionless and massless) pulley such that one block with mass m1 = 15...

Solved • Jul 10, 2020

Forces in Connected Objects (Systems)

#### Q. Consider the baby being weighed in Figure 4.34. (a) What is the mass of the child and basket if a scale reading of 55 N is observed? (b) What is th...

Solved • Jun 2, 2020

Forces in Connected Objects (Systems)

#### Q. Consider the system shown in the figure (Figure 1). Block A weighs 46.9 N and block B weighs 30.1 N.Once block B is set into downward motion, it de...

Solved • May 21, 2020

Forces in Connected Objects (Systems)

#### Q. A steel cable with mass is lifting a girder. The girder is speeding up.Draw a free-body diagram for the girder. Draw the vectors starting at the bl...

Solved • May 14, 2020

Forces in Connected Objects (Systems)

#### Q. A steel cable with mass is lifting a girder. The girder is speeding up.Draw a free-body diagram for the steel cable. Draw the vectors starting at t...

Solved • May 7, 2020

Forces in Connected Objects (Systems)

#### Q. Below are eight crates of different mass.  The crates are attached to massless ropes, as indicated in the picture, where the ropes are marked by le...

Solved • Apr 28, 2020

Forces in Connected Objects (Systems)

#### Q. Two blocks with masses M1 and M2 hang one under the other. For this problem take the positive direction to be upward, and use g for the magnitude o...

Solved • Apr 28, 2020

Forces in Connected Objects (Systems)

#### Q. Find the tension in each cord in the figure if the weight of the suspended object is w.1) Find the tension of the cord A in the figure (a).2) Find ...

Solved • Apr 14, 2020

Forces in Connected Objects (Systems)

#### Q. What is the tension in the rope of the figure? Assume that m = 64 kg.

Solved • Apr 8, 2020

Forces in Connected Objects (Systems)

#### Q. A flatbed truck is carrying a 20.0-kg crate along a level road. The coefficient of static friction between the crate and the bed is 0.400. What is ...

Solved • Jun 6, 2017

Forces in Connected Objects (Systems)

#### Q. A force F pulls three blocks with masses m 1, m2, and m3 along a surface as shown the the picture below. The coefficient of kinetic friction betwee...

Solved • May 17, 2017

Forces in Connected Objects (Systems)

#### Q. In the figure below, the two boxes are initially at rest when a crane lifts the pulley with a force F. What is the motion of each box if the force ...

Solved • Feb 2, 2017

Forces in Connected Objects (Systems)

#### Q. In the figure below, a cart is pushed with a force F. If the coefficient of static friction between the cart and the box is 0.45, what is the minim...

Solved • Feb 2, 2017

Forces in Connected Objects (Systems)

#### Q. Consider the figure given below. Mass M 1 = 15 kg is free-hanging, supported by the tension in the rope. The mass M2 = 5 kg is at rest on the surfa...

Solved • Feb 2, 2017

Forces in Connected Objects (Systems)

#### Q. In the figure below, two masses, each 150 kg, are NOT at rest and are attached to each other by thin unstretchable cable. Find the acceleration of ...

Solved • Jan 19, 2017

Forces in Connected Objects (Systems)

#### Q. In the figure below, two masses, each 150 kg, are NOT at rest and are attached to each other by thin unstretchable cable. Find the acceleration of ...

Solved • Jan 19, 2017

Forces in Connected Objects (Systems)

#### Q. A 10.0 kg block on a table is connected by a string to a 63-kg mass, which is hanging over the edge of the table. Assuming that frictional forces m...

Solved • Jan 18, 2017

Forces in Connected Objects (Systems)

#### Q. A 5 kg box rests on top of a 10 kg box. The friction coefficients between the 10 kg box and the floor are μs1 = 0.4 and μk1 = 0.3, and the friction...

Solved • Jan 18, 2017

Forces in Connected Objects (Systems)

#### Q. A 5 kg box rests on top of a 10 kg box. The friction coefficients between the 10 kg box and the floor are μs1 = 0.4 and μk1 = 0.3, and the friction...

Solved • Jan 18, 2017

Forces in Connected Objects (Systems)

#### Q. A 5 kg box rests on top of a 10 kg box. The friction coefficients between the 10 kg box and the floor are μs1 = 0.4 and μk1 = 0.3, and the friction...

Solved • Jan 18, 2017

Forces in Connected Objects (Systems)

#### Q. Box A, 15 kg, rests on a frictionless horizontal surface connected to box  B, 5.0 kg, by a string as shown in the diagram. What is the magnitude of...

Solved • Dec 22, 2016

Forces in Connected Objects (Systems)

#### Q. A box, mass m, hangs from the pulley system shown to the right. What is the tension in the rope that runs over the pulleys? (Assume the rope and pu...

Solved • Dec 22, 2016