Homework Answers
AS both the boxes reamin at rest, it means that an equivalent
force to the applied force should actina n opposing
direction.
Now, as the force acting on both the boxes are 30 N, an equivalent
force of 30 N has to be applied on both boxes so that the boxes
would remain in a state of rest.
Hence, the frictionalforces on either boxes will be
EQUAL because the boxes remain at
rest
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Conceptual Question 6.13 9 of 14 Part A Boxes A and B in (Figure 1) both...
1. The figure shows a box with mass m1 on a frictionless plane inclined at angle...
1. The figure shows a box with mass m1 on a
frictionless plane inclined at angle ?1. The
box is
connected via a cord of negligible mass to another
box with mass m2 on a frictionless plane
inclined at
angle ?2 (> ?1). The pulley
is frictionless and has
negligible mass and assumes that the setup is on the
surface of the earth.
a) Provide free-body force diagram for both boxes.
b) What is the acceleration in terms of m1,...
A 10 kg block is pushed against a vertical wall by a horizontal force of 100...
A 10 kg block is pushed against a vertical wall by a
horizontal force of 100 N as shown in the figure the coefficient of
static friction between the block and the wall is 0.60 and the
coefficient of kinetic friction is 0.40 which of the following
statements is true if the block is initially at rest
1) The block slides down the wall with an acceleration of magnitude 3.8 m/s2 The block will slide down the wall because the...
9. A 1.90 kg box rests on a plank that is inclined at an angle of...
9. A 1.90 kg box rests on a plank that is inclined at an angle
of 29° above the horizontal. The upper end of the box is attached
to a spring with a force constant of 18 N/m, as shown in the
figure. If the coefficient of static friction between the box and
the plank is 0.79, what is the maximum amount the spring can be
compressed and the box remain at rest?
1) Consider two boxes: box B, with a mass of 3kg, placed on top box A,...
1) Consider two boxes: box B, with a mass of 3kg, placed on top box A, with a mass of 10kg. If box A is pushed with a force of 70N, what is the force of friction on box B? The coefficients of friction between boxes A and B are µs = 0.7 and µk = 0.4, while friction is negligible between box A and the ground. 2) A 1.5kg box is pushed up a 30o incline with a force...
theta is 90 degrees 3. Two boxes with the masses m =3kg and m2 = 10kg...
theta is 90 degrees
3. Two boxes with the masses m =3kg and m2 = 10kg are connected by a massless rope over a pulley that is made in the shape of a disk with radius R=15cm and mass M=800g, as shown in the Figure. The coefficient of kinetic friction for the motion of either box on both horizontal and sloped surfaces is 0.12. The boxes are released and allowed to move. (a) Find force of tension between box 2...
2 Main Question Consider two stacked boxes, A and B, as shown to the right. Box...
2 Main Question Consider two stacked boxes, A and B, as shown to the right. Box A has a mass of 8.0 kg, and box B has a mass of 12.0 kg. Box B is dragged to the right by a force F. The coefficient of kinetic friction be- tween the floor and box B is 0.50, and the coefficient What is the largest A can be for box A to not slip off the top? What will the acceleration...
In the figure above, block A has mass mA = 25 kg and block B has...
In the figure above, block A has mass mA = 25 kg and block B has mass mB = 10 kg. Both blocks move with constant acceleration a = 2 m/s2 to the right, and the coefficient of static friction between the two blocks is = 0.8. The static frictional force acting between the blocks is (A) 20 N (B) 50 N (C) 78 N (D) 196 N E) 274 N
Please Please Please, help me with both questions 1 and 2. Regards! ' Question 1 In...
Please Please Please, help me with both questions 1 and 2.
Regards!
'
Question 1
In the figure provided, two crates are sliding down a ramp. If
the crate at the top has a mass of 34.9 kg and the other has a mass
of 69.8 kg, what is the tension in the string? Assume the string is
massless.
Question 2
In the figure provided, there is a crate of mass 4.74 kg on top
of another crate of mass...
#8-#9 Four identical 100 N boxes are initially at rest on a rough horizontal surface. In...
#8-#9
Four identical 100 N boxes are initially at rest on a rough horizontal surface. In all cases, the coefficient of static friction between the box and the surface is 0.70 and the coefficient of kinetic friction is 0.25. Forces are applied as shown. 8. Circle the letter of the box (or boxes) subject to a frictional force of 25 N. A.C. P U 9. Circle the box(es) in equilibrium. A+B .70 25 N 50 N 12 Sa 100 N...
Question 7 7 of 8> Constants Part A Boxes A and B are in contact on...
Question 7 7 of 8> Constants Part A Boxes A and B are in contact on a horizontal, frictionless surface (Figure 1). Box A has mass 23.0 kg and box B has mass 8.0 kg. A horizontal force of 140 N is exerted on box A What is the magnitude of the force that box A exerts on box B? Express your answer with the appropriate units. Value Units Submit Request Answer Provide Feedback Next > Figure 1 of 1
1. The figure shows a box with mass m1 on a
frictionless plane inclined at angle ?1. The
box is
connected via a cord of negligible mass to another
box with mass m2 on a frictionless plane
inclined at
angle ?2 (> ?1). The pulley
is frictionless and has
negligible mass and assumes that the setup is on the
surface of the earth.
a) Provide free-body force diagram for both boxes.
b) What is the acceleration in terms of m1,...
A 10 kg block is pushed against a vertical wall by a
horizontal force of 100 N as shown in the figure the coefficient of
static friction between the block and the wall is 0.60 and the
coefficient of kinetic friction is 0.40 which of the following
statements is true if the block is initially at rest
1) The block slides down the wall with an acceleration of magnitude 3.8 m/s2 The block will slide down the wall because the...
9. A 1.90 kg box rests on a plank that is inclined at an angle
of 29° above the horizontal. The upper end of the box is attached
to a spring with a force constant of 18 N/m, as shown in the
figure. If the coefficient of static friction between the box and
the plank is 0.79, what is the maximum amount the spring can be
compressed and the box remain at rest?
theta is 90 degrees
3. Two boxes with the masses m =3kg and m2 = 10kg are connected by a massless rope over a pulley that is made in the shape of a disk with radius R=15cm and mass M=800g, as shown in the Figure. The coefficient of kinetic friction for the motion of either box on both horizontal and sloped surfaces is 0.12. The boxes are released and allowed to move. (a) Find force of tension between box 2...
2 Main Question Consider two stacked boxes, A and B, as shown to the right. Box A has a mass of 8.0 kg, and box B has a mass of 12.0 kg. Box B is dragged to the right by a force F. The coefficient of kinetic friction be- tween the floor and box B is 0.50, and the coefficient What is the largest A can be for box A to not slip off the top? What will the acceleration...
In the figure above, block A has mass mA = 25 kg and block B has mass mB = 10 kg. Both blocks move with constant acceleration a = 2 m/s2 to the right, and the coefficient of static friction between the two blocks is = 0.8. The static frictional force acting between the blocks is (A) 20 N (B) 50 N (C) 78 N (D) 196 N E) 274 N
Please Please Please, help me with both questions 1 and 2.
Regards!
'
Question 1
In the figure provided, two crates are sliding down a ramp. If
the crate at the top has a mass of 34.9 kg and the other has a mass
of 69.8 kg, what is the tension in the string? Assume the string is
massless.
Question 2
In the figure provided, there is a crate of mass 4.74 kg on top
of another crate of mass...
#8-#9
Four identical 100 N boxes are initially at rest on a rough horizontal surface. In all cases, the coefficient of static friction between the box and the surface is 0.70 and the coefficient of kinetic friction is 0.25. Forces are applied as shown. 8. Circle the letter of the box (or boxes) subject to a frictional force of 25 N. A.C. P U 9. Circle the box(es) in equilibrium. A+B .70 25 N 50 N 12 Sa 100 N...
Question 7 7 of 8> Constants Part A Boxes A and B are in contact on a horizontal, frictionless surface (Figure 1). Box A has mass 23.0 kg and box B has mass 8.0 kg. A horizontal force of 140 N is exerted on box A What is the magnitude of the force that box A exerts on box B? Express your answer with the appropriate units. Value Units Submit Request Answer Provide Feedback Next > Figure 1 of 1
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