Homework Answers
Solution:
Given:
Acceleration (a) = 0.5 m/s2
And, m = 16 kg
Here, Contact force (F) can be given as :
F = m a + m g = m (a + g) = (16 kg){(0.5 m/s2) + (9.8 m/s2)} = 164.8 N
Add Answer to:
A lift is moving upward with an acceleration a=0.5ms2. There is a block of mass m-16...
A box of mass m=46.6kg is pushed upward with an acceleration a=7.7ms 2 by a horizontal...
A box of mass m=46.6kg is pushed upward with an acceleration a=7.7ms 2 by a horizontal force F. The slope on which the box rests makes an angle a=55 degree. What should be the force F? Refer to the figure below. The unit of the answer is N. Q3.4 Aceleraton a g=9.8ms 2 Force F Mass m
(a) An elevator of mass m moving upward has two forces acting on it: the upward...
(a) An elevator of mass m moving upward has two forces acting on it: the upward force of tension in the cable and the downward force due to gravity. When the elevator is accelerating upward, which is greater, T or w? Tw Both forces are equal. (b) When the elevator is moving at a constant velocity upward, which is greater, T or w? Tw Both forces are equal. (c) When the elevator is moving upward, but the acceleration is downward, which is...
(a) An elevator of mass m moving upward has two forces acting on it: the upward force of tension in the cable and the d...
(a) An elevator of mass m moving upward has two forces acting on it: the upward force of tension in the cable and the downward force due to gravity. When the elevator is accelerating upward, which is greater, T or w? T w Both forces are equal. (b) When the elevator is moving at a constant velocity upward, which is greater, T or w? T w Both forces are equal. (c) When the elevator is moving upward, but the acceleration...
The figure below shows an initially stationary block of mass m on a floor. A force...
The figure below shows an initially stationary block of mass m on a floor. A force of magnitude F = 0.520·mg is then applied at upward angle ? = 16°. (a) What is the magnitude of the acceleration of the block across the floor if (a) µs = 0.600 and µk = 0.500? m/s2 (b) What is the magnitude of the acceleration of the block across the floor if µs = 0.400 and µk = 0.300? m/s2
3. A block of mass m = 6.2 kg, moving on a frictionless surface with a...
3. A block of mass m = 6.2 kg, moving on a frictionless surface with a velocity of -6.5 m/s to the right, collides with a block of mass M at rest, as shown in the figure. After the collision, the 6.2-Kg block recoils with a velocity of f =0.70 m/s to the left. If the blocks are in contact for 0.30 s, what is the magnitude of the average force on the 6.2-kg block, while the two blocks are...
Consider the block arrangement for the following situations: (a) Block moving upward at constant speed (b) Block moving...
Consider the block arrangement for the following situations: (a)
Block moving upward at constant speed (b) Block moving downward at
constant speed (c) Block moving upward, speed decreasing (d) Block
moving upward, speed increasing (e) Block stationary
it was like that
i dont understand the question. help.
Example 5.2.1 Sample Problem Block accelerating vertically This first figure shows a vertically moving block on the end of a cord. Example 5.2.1 Figure 1 This second figure gives the vertical velocity component...
A block of mass m lies on a horizontal table. The coefficient of static friction between...
A block of mass m lies on a horizontal table. The coefficient of static friction between the block and the table is ?s. The coefficient of kinetic friction is ?k, with ?k<?s. 1)If the block is at rest (and the only forces acting on the block are the force due to gravity and the normal force from the table), what is the magnitude of the force due to friction? 2)Suppose you want to move the block, but you want to...
A block of mass m = 8.40 kg, moving on a horizontal frictionless surface with a...
A block of mass m = 8.40 kg, moving on a horizontal frictionless surface with a speed 4.20 m/s, makes a perfectly elastic collision with a block of mass M at rest. After the collision, the 8.40 kg block recoils with a speed of 0.400 m/s. In the figure, the blocks are in contact for 0.200 s. What is the magnitude of the average force on the 8.40 kg block, while the two blocks are in contact?
To understand kinetic and static friction. A block of mass m lies on a horizontal table. The coefficient of static fric...
To understand kinetic and static friction. A block of mass m lies on a horizontal table. The coefficient of static friction between the block and the table is μs. The coefficient of kinetic friction is μk, with μk<μs. a- Suppose you want to move the block, but you want to push it with the least force possible to get it moving. With what force F must you be pushing the block just before the block begins to move? Express the...
A block of mass m= 81 kg slides down a vertical plane, where the normal force...
A block of mass m= 81 kg slides down a vertical plane, where the normal force between the vertical plane and the block is non-zero. If the magnitude of acceleration of the block is a =2.5 m/s², find the force of friction between the block and the plane in units of N (Newton). Take g=9.8 m/s2
A box of mass m=46.6kg is pushed upward with an acceleration a=7.7ms 2 by a horizontal force F. The slope on which the box rests makes an angle a=55 degree. What should be the force F? Refer to the figure below. The unit of the answer is N. Q3.4 Aceleraton a g=9.8ms 2 Force F Mass m
3. A block of mass m = 6.2 kg, moving on a frictionless surface with a velocity of -6.5 m/s to the right, collides with a block of mass M at rest, as shown in the figure. After the collision, the 6.2-Kg block recoils with a velocity of f =0.70 m/s to the left. If the blocks are in contact for 0.30 s, what is the magnitude of the average force on the 6.2-kg block, while the two blocks are...
Consider the block arrangement for the following situations: (a)
Block moving upward at constant speed (b) Block moving downward at
constant speed (c) Block moving upward, speed decreasing (d) Block
moving upward, speed increasing (e) Block stationary
it was like that
i dont understand the question. help.
Example 5.2.1 Sample Problem Block accelerating vertically This first figure shows a vertically moving block on the end of a cord. Example 5.2.1 Figure 1 This second figure gives the vertical velocity component...
Most questions answered within 3 hours.
-
Where is the error in this code sequence?
String s1 = "Hello";
String s2 = "ello";...
asked 10 months ago -
Financial data for Joel de Paris, Inc., for last year
follow:
Joel de Paris, Inc.
Balance...
asked 10 months ago -
Consider this reaction:
Al2(SO4)3 (aq)+ BaCl3
(aq) Al2Cl6 (aq)- +
3BaSO4(s) . What is the...
asked 10 months ago -
Suppose that Savneet is considering increasing her
recent random sample from 20 car rentals to 40...
asked 10 months ago -
Trucks arrive at an unloading terminal at an average rate of 120
per hour.
Trucks arrive...
asked 10 months ago -
Why are methanol and ethanol completely soluble in water while
octanol is not very little soluble....
asked 10 months ago -
A facilities manager at a university reads in a research report
that the mean amount of...
asked 10 months ago -
When the CuSO4 is rehydrated by adding water to the anhydrous
compound, is this an endothermic...
asked 10 months ago -
A ray of sunlight is passing from diamond into crown glass; the
angle of incidence is...
asked 10 months ago -
A block of mass 0.249 kg is placed on top of a light, vertical
spring of...
asked 10 months ago -
how do the kidneys compensate in the presences of acidosis
a) trigger hyperventilate
b) reserve acid...
asked 10 months ago -
Question 501 pts
The rental rate of capital to the firm increases. Which of the
following...
asked 10 months ago