Homework Answers
***************************************************************************************************
Check the answer and let me know immediately if you
find something wrong... I will rectify the mistakes asap if
any
5) A box of mass 25 kg is dragged across a level floor by a rope...
5) A box of mass 25 kg is dragged across a level floor by a rope that makes an angle of 25o above the horizontal. The coefficient of friction between the box and the floor is 0.72. Find the force F that will ensure the box moves with constant speed.
A 15.0 kg box is being pulled across a rough floor at a constant acceleration of 3.00 m/s^2 by means of a rope. The rope...
A 15.0 kg box is being pulled across a rough floor at a constant acceleration of 3.00 m/s^2 by means of a rope. The rope makes an angle of 34.0 degrees above the horizontal. The coefficient of kinetic friction between the floor and the box is u=0.250. Calculate the magnitude of the tension in the rope?
A girl is using a rope to pull a mystery box that has a mass of...
A girl is using a rope to pull a mystery box that has a mass of 30.6 kg across a rough level surface. The rope makes an angle with the floor of 30 degrees above the horizontal, and the tension in the rope is 100 N. If the coeficcient of kinetic friction between the box and surface is 0.333, what is the magnitude of kinetic friction force acting on the mystery box?
A rooe is tied to a box and used to pull the box A rope is...
A rooe is tied to a box and used to pull the box
A rope is tied to a box and used to pull the box 1.9 m along a horizontal floor. The rope makes an angle of 30° with the horizontal and has a tension of 5 N. The opposing friction force between the box and the floor is 1 N Part A How much work does gravity do on the box? Express your answer in Joules to one...
1. What force is necessary to pull a 20.0-kg wooden box at a constant speed over...
1. What force is necessary to pull a 20.0-kg wooden box at a constant speed over a wooden floor at a constant speed over a wooden floor by a rope that makes an angle of 30° above the horizontal? The coefficient of kinetic friction (wood on wood) is 0.30. 2. A 50-kg balikbayan box rests on a horizontal floor. You exert a gradually increasing horizontal push on it and observe that the box just begins to move when your force...
5. An adult uses a rope to pull a child on a sled across some ice....
5. An adult uses a rope to pull a child on a sled across some ice. The sled has a mass of 5 kg. the child has a mass of 35 kg, and the adult has a mass of 60 kg. The sled moves with a constant velocity of 2.5 m/s. The rope makes an angle of 300 with the horizontal. The tension in the rope is 50 N. Find the coefficient of friction between the ice and the sled.
At the airport, you pull a 18 kg suitcase across the floor with a strap that...
At the airport, you pull a 18 kg suitcase across the
floor with a strap that is at an angle of 40 ∘ above the
horizontal.
Part A
Find the normal force.
Express your answer using two significant figures.
N = ______N
Part B
Find the tension in the strap, given that the suitcase
moves with constant speed and that the coefficient of kinetic
friction between the suitcase and the floor is 0.40.
Express your answer using two significant figures....
A block of mass = 50.0 kg is being dragged at a constant velocity across a...
A block of mass = 50.0 kg is being dragged at a constant velocity across a floor by a strong person pulling it with a rope. The rope makes an angle of 300 with the horizontal. The tension in the rope is 50.0 Newtons. Assume a real floor, with friction. What is the coefficient of kinetic friction between the box and the floor?
A 3.10-kg box is sliding across the horizontal floor of an elevator. The coefficient of kinetic...
A 3.10-kg box is sliding across the horizontal floor of an elevator. The coefficient of kinetic friction between the box and the floor is 0.460. Determine the kinetic frictional force that acts on the box for each of the following cases. (a) The elevator is stationary. N (b) The elevator is accelerating upward with an acceleration whose magnitude is 2.30 m/s2. N (c) The elevator is accelerating downward with an acceleration whose magnitude is 2.30 m/s2. N
A 2.00-kg box is sliding across the horizontal floor of an elevator. The coefficient of kinetic...
A 2.00-kg box is sliding across the horizontal floor of an elevator. The coefficient of kinetic friction between the box and the floor is 0.440. Determine the kinetic frictional force that acts on the box for each of the following cases. (a) The elevator is stationary. N (b) The elevator is accelerating upward with an acceleration whose magnitude is 2.00 m/s2. N (c) The elevator is accelerating downward with an acceleration whose magnitude is 2.00 m/s2. N
A rooe is tied to a box and used to pull the box
A rope is tied to a box and used to pull the box 1.9 m along a horizontal floor. The rope makes an angle of 30° with the horizontal and has a tension of 5 N. The opposing friction force between the box and the floor is 1 N Part A How much work does gravity do on the box? Express your answer in Joules to one...
1. What force is necessary to pull a 20.0-kg wooden box at a constant speed over a wooden floor at a constant speed over a wooden floor by a rope that makes an angle of 30° above the horizontal? The coefficient of kinetic friction (wood on wood) is 0.30. 2. A 50-kg balikbayan box rests on a horizontal floor. You exert a gradually increasing horizontal push on it and observe that the box just begins to move when your force...
5. An adult uses a rope to pull a child on a sled across some ice. The sled has a mass of 5 kg. the child has a mass of 35 kg, and the adult has a mass of 60 kg. The sled moves with a constant velocity of 2.5 m/s. The rope makes an angle of 300 with the horizontal. The tension in the rope is 50 N. Find the coefficient of friction between the ice and the sled.
At the airport, you pull a 18 kg suitcase across the
floor with a strap that is at an angle of 40 ∘ above the
horizontal.
Part A
Find the normal force.
Express your answer using two significant figures.
N = ______N
Part B
Find the tension in the strap, given that the suitcase
moves with constant speed and that the coefficient of kinetic
friction between the suitcase and the floor is 0.40.
Express your answer using two significant figures....
Most questions answered within 3 hours.
-
A regression equation that describes the relationship between
the amount of the bill ($) at a...
asked 43 minutes ago -
exercise on VSEPR and molecular structrue.
octahedral
SeCl62-
TeCl62-
ClF62-
distorted
SeF62–
IF6–
asked 1 hour ago -
284 mL of a 0.52 M potassium hydroxide solution is added to 467
mL of a...
asked 1 hour ago -
Little’s Law: Val d’Costa is a world famous ski village in the
French Alps. Because of...
asked 2 hours ago -
Find the absolute error D for the calculation if A + B/C=D A=
9.4 +/- 0.4...
asked 2 hours ago -
New Air Heating and Cooling, manufactures furnaces and central
air units. The company pride itself on...
asked 2 hours ago -
A coach uses a new technique to train gymnasts. Seven
gymnasts were randomly selected and their...
asked 4 hours ago -
While rotating the tires on your car you notice a rock [mass =
0.1 Kg] stuck...
asked 6 hours ago -
Using MARS simulator, write MIPS programs according to
the following scenarios: Receive a positive integer number...
asked 8 hours ago -
An object in front of a concave mirror has a real image that is
11.5 cm...
asked 8 hours ago -
Consider the reaction, C3 H8 + O2 --> CO2 + H2O. How many
moles of O2...
asked 10 hours ago -
You and your opponent both roll a fair die. If you both roll the
same number,...
asked 10 hours ago