Homework Answers
A 110-kg box on the right and a 50-kg box on the left are tied together...
A 110-kg box on the right and a 50-kg box on the left are tied together by a horizontal cable. The 110-kg box is acted upon by an external force of 600 N to the right. The frictional force exerted by the floor on the 110-kg box is 40 N and the frictional force exerted by the floor on the 50-kg box is 10 N. What is the magnitude of the tension in the connecting cable?
The system shown above is released from rest.
3) The system shown above is released from rest. If friction is negligible, the acceleration of the 4.0 kg block sliding on the table shown above is most nearly4) A 50-N crate sits on the horizontal floor where the coefficient of static friction between the crate and the floor is 0.50. A 20-N force is applied to the crate acting to the right. What is the resulting static frictional force acting on the crate.(a) 20 N to the right (b) 20...
1. A 5 kg ball traveling to the right at 7 m/s collides with a 3...
1. A 5 kg ball traveling to the right at 7 m/s collides with a 3 kg ball at rest. After the collision, the 3 kg ball is traveling to the right at 8.75 m/s. What is the velocity of the ball on the left after the collision? 2. A 100-kg box on the right and a 45-kg box on the left are tied together by a horizontal cable. The 100-kg box is acted upon by an external force of...
2. A 5 kg block sits at rest on an inclined ramp which makes an angle...
2. A 5 kg block sits at rest on an inclined ramp which makes an angle of 24 degrees with respect to the horizontal. It is noted that even if the angle 0 is increased the block still does not slip. The coefficient of static friction for the bottom surface of the block and the surface of the ramp is us= 0.56. The magnitude of the frictional force acting on the block must be O 1 O O A. 50...
In the figure, a 2.6 kg block is accelerated from rest by a compressed spring of...
In the figure, a 2.6 kg block is accelerated from rest by a
compressed spring of spring constant 660 N/m. The block leaves the
spring at the spring's relaxed length and then travels over a
horizontal floor with a coefficient of kinetic friction
?k = 0.272. The frictional force stops the
block in distance D = 7.9 m. What are (a)
the increase in the thermal energy of the block
In the figure, a 2.6 kg block is accelerated from...
A 10 N horizontal force is applied to a 50 N block initially at rest on...
A 10 N horizontal force is applied to a 50 N block initially at rest on a rough horizontal surface. If the coefficient of static friction is 0.5 and the coefficient of kinetic friction is 0.4, then the frictional force on the block is A : 10 N B : 20 N C : 25 N D : 0 N
In the figure below, a 4.0 kg block is accelerated from rest by a compressed spring...
In the figure below, a 4.0 kg block is accelerated from rest by a compressed spring of spring constant 600 N/m. The block leaves the spring at the spring's relaxed length and then travels over a horizontal floor with a coefficient of kinetic friction uk= 0.30.The frictional force stops the block in the distance of D = 8.0 m. -- No friction a) Find the increase in the thermal energy of the block-floor system b) What is the original compression...
A horizontal force of 4.50 N is applied to a 1.50-kg block, initial at rest on...
A horizontal force of 4.50 N is applied to a 1.50-kg block, initial at rest on a table with a level surface. Will the block move if the coefficient of static friction is µs = 0.580? What is the coefficient of static friction if it just begins to move? What is the acceleration of the block if the coefficient of kinetic friction is 0.150?
A 3.6 kg block is pushed along a horizontal floor by a force ModifyingAbove Upper F...
A 3.6 kg block is pushed along a horizontal floor by a force ModifyingAbove Upper F With right-arrow of magnitude 28 N at a downward angle θ = 40°. The coefficient of kinetic friction between the block and the floor is 0.26. Calculate the magnitudes of (a) the frictional force on the block from the floor and (b) the block’s acceleration.
Block A of mass 10 kg sits on top of Block B of mass 15 kg....
Block A of mass 10 kg sits on top of Block B of mass 15 kg. Block B is being tugged by a force F and Block A is being tugged by a force FA . FA makes an angle ? = 10degrees with the horizontal and is a 7N force. The coefficient of static friction between the two blocks is .01while the coefficient of kinetic friction between the floor and Block B is given as .5(see diagram below). Force...
2. A 5 kg block sits at rest on an inclined ramp which makes an angle of 24 degrees with respect to the horizontal. It is noted that even if the angle 0 is increased the block still does not slip. The coefficient of static friction for the bottom surface of the block and the surface of the ramp is us= 0.56. The magnitude of the frictional force acting on the block must be O 1 O O A. 50...
In the figure, a 2.6 kg block is accelerated from rest by a
compressed spring of spring constant 660 N/m. The block leaves the
spring at the spring's relaxed length and then travels over a
horizontal floor with a coefficient of kinetic friction
?k = 0.272. The frictional force stops the
block in distance D = 7.9 m. What are (a)
the increase in the thermal energy of the block
In the figure, a 2.6 kg block is accelerated from...
In the figure below, a 4.0 kg block is accelerated from rest by a compressed spring of spring constant 600 N/m. The block leaves the spring at the spring's relaxed length and then travels over a horizontal floor with a coefficient of kinetic friction uk= 0.30.The frictional force stops the block in the distance of D = 8.0 m. -- No friction a) Find the increase in the thermal energy of the block-floor system b) What is the original compression...
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