1.Block A rests on top of block B as shown in below. Thetable is frictionless but there is friction (a horizontal force) betweenblocks A and B. Block B has mass 6.00 kg and block A has mass 2.00 kg.If the horizontal pull applied to block B equals 12.0 N, then block B hasan acceleration of 1.80 m/s2. What is the acceleration of block A? 2.A dockworker applies a constant horizontal force of 80.0 N toa block of ice on a smooth horizontal floor. The frictional force is negligible.The block starts from rest and moves 11.0 m in 5.00 s. (a) What isthe mass of the block of ice? (b) If the worker stops pushing at the endof 5.00 s, how far does the block move in the next 5.00 s? 3.Boxes A and B are incontact on a horizontal, frictionlesssurface (shown below). Box A hasmass 20.0 kg and box B has mass 5.0 kg. A horizontal force of 250 Nis exerted on box A. What is themagnitude of the force that box Aexerts on box B? 4.Two blocks connected by a light horizontal rope sit at reston a horizontal, frictionless surface. Block A has mass 15.0 kg, andblock B has mass m. A constant horizontal force F = 60.0 N is appliedto block A (figure shown below). In the first 5.00 s after the force is applied,block A moves 18.0 m to the right. (a) While the blocks are moving,what is the tension T in the rope that connects the two blocks? (b) Whatis the mass of block B? 5.A small rocket with mass 20.0 kg is moving in free falltoward the earth. Air resistance can be neglected. When the rocket is80.0 m above the surface of the earth, it is moving downward with aspeed of 30.0 m/s. At that instant the rocket engines start to fire and producea constant upward force F on the rocket. Assume the change in therocket’s mass is negligible. What is the value of F if the rocket’s speedbecomes zero just as it reaches the surface of the earth, for a soft landing?(Hint: The net force on the rocket is the combination of the upwardforce F from the engines and the downward weight of the rocket.) 1. Block A rests on top of block B as shown in below. The table is frictionless but there is friction (a horizontal force)between blocks A and B. Block B has mass 6.00 kg and block A has mass 2.00 kg. If the horizontal pull applied toblock B equals 12.0 N, then block B has an acceleration of 1.80 m/s². What is the acceleration of block A?Block (B)Rope (R)Mason (M)2. A dockworker applies a constant horizontal force of 80.0 N to a block of ice on a smooth horizontal floor. Thefrictional force is negligible. The block starts from rest and moves 11.0 m in 5.00 s. (a) What is the mass of theblock of ice? (b) If the worker stops pushing at the end of 5.00 s, how far does the block move in the next 5.00 s?3. Boxes A and B are in contact on a horizontal, frictionless surface (shown below). Box A has mass 20.0 kg and boxB has mass 5.0 kg. A horizontal force of 250 N is exerted on box A. What is the magnitude of the force that box Aexerts on box B?250 NAB 4. Two blocks connected by a light horizontal rope sit at rest on a horizontal, frictionless surface. Block A has mass15.0 kg, and block B has mass m. A constant horizontal force F= 60.0 N is applied to block A (figure shownbelow). In the first 5.00 s after the force is applied, block A moves 18.0 m to the right. (a) While the blocks aremoving, what is the tension 7 in the rope that connects the two blocks? (b) What is the mass of block B?FAB5. A small rocket with mass 20.0 kg is moving in free fall toward the earth. Air resistance can be neglected. Whenthe rocket is 80.0 m above the surface of the earth, it is moving downward with a speed of 30.0 m/s. At thatinstant the rocket engines start to fire and produce a constant upward force F on the rocket. Assume the changein the rocket's mass is negligible. What is the value of F if the rocket's speed becomes zero just as it reaches thesurface of the earth, for a soft landing? (Hint: The net force on the rocket is the combination of the upward forceF from the engines and the downward weight of the rocket.)

Name: 1.Block A rests on top of block B as shown in below. Thetable is frict
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Description: 1.Block A rests on top of block B as shown in below. Thetable is frictionless but there is friction (a horizontal force) betweenblocks A and B. Block B has mass 6.00 kg and block A has mass 2.00 kg.If the horizontal pull applied to block B equals 12.

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Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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1.Block A rests on top of block B as shown in below. Thetable is frictionless but there is friction (a horizontal force) betweenblocks A and B. Block B has mass 6.00 kg and block A has mass 2.00 kg.If the horizontal pull applied to block B equals 12.0 N, then block B hasan acceleration of 1.80 m/s2. What is the acceleration of block A?

2.A dockworker applies a constant horizontal force of 80.0 N toa block of ice on a smooth horizontal floor. The frictional force is negligible.The block starts from rest and moves 11.0 m in 5.00 s. (a) What isthe mass of the block of ice? (b) If the worker stops pushing at the endof 5.00 s, how far does the block move in the next 5.00 s?

3.Boxes A and B are incontact on a horizontal, frictionlesssurface (shown below). Box A hasmass 20.0 kg and box B has mass 5.0 kg. A horizontal force of 250 Nis exerted on box A. What is themagnitude of the force that box Aexerts on box B?

4.Two blocks connected by a light horizontal rope sit at reston a horizontal, frictionless surface. Block A has mass 15.0 kg, andblock B has mass m. A constant horizontal force F = 60.0 N is appliedto block A (figure shown below). In the first 5.00 s after the force is applied,block A moves 18.0 m to the right. (a) While the blocks are moving,what is the tension T in the rope that connects the two blocks? (b) Whatis the mass of block B?

5.A small rocket with mass 20.0 kg is moving in free falltoward the earth. Air resistance can be neglected. When the rocket is80.0 m above the surface of the earth, it is moving downward with aspeed of 30.0 m/s. At that instant the rocket engines start to fire and producea constant upward force F on the rocket. Assume the change in therocket’s mass is negligible. What is the value of F if the rocket’s speedbecomes zero just as it reaches the surface of the earth, for a soft landing?(Hint: The net force on the rocket is the combination of the upwardforce F from the engines and the downward weight of the rocket.)

1. Block A rests on top of block B as shown in below. The table is frictionless but there is friction (a horizontal force)
between blocks A and B. Block B has mass 6.00 kg and block A has mass 2.00 kg. If the horizontal pull applied to
block B equals 12.0 N, then block B has an acceleration of 1.80 m/s². What is the acceleration of block A?
Block (B)
Rope (R)
Mason (M)
2. A dockworker applies a constant horizontal force of 80.0 N to a block of ice on a smooth horizontal floor. The
frictional force is negligible. The block starts from rest and moves 11.0 m in 5.00 s. (a) What is the mass of the
block of ice? (b) If the worker stops pushing at the end of 5.00 s, how far does the block move in the next 5.00 s?
3. Boxes A and B are in contact on a horizontal, frictionless surface (shown below). Box A has mass 20.0 kg and box
B has mass 5.0 kg. A horizontal force of 250 N is exerted on box A. What is the magnitude of the force that box A
exerts on box B?
250 N
A
B

4. Two blocks connected by a light horizontal rope sit at rest on a horizontal, frictionless surface. Block A has mass
15.0 kg, and block B has mass m. A constant horizontal force F= 60.0 N is applied to block A (figure shown
below). In the first 5.00 s after the force is applied, block A moves 18.0 m to the right. (a) While the blocks are
moving, what is the tension 7 in the rope that connects the two blocks? (b) What is the mass of block B?
F
A
B
5. A small rocket with mass 20.0 kg is moving in free fall toward the earth. Air resistance can be neglected. When
the rocket is 80.0 m above the surface of the earth, it is moving downward with a speed of 30.0 m/s. At that
instant the rocket engines start to fire and produce a constant upward force F on the rocket. Assume the change
in the rocket's mass is negligible. What is the value of F if the rocket's speed becomes zero just as it reaches the
surface of the earth, for a soft landing? (Hint: The net force on the rocket is the combination of the upward force
F from the engines and the downward weight of the rocket.)

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