1. An object in a horizontal surface was moved by applying a constant force (In Newtons) F = 8î + 5ĵ. If the object was displaced 9 m to the right, determine a. The work done by the applied force on the object. (Ans: 72.0 J) b. The angle at which the force is applied. (Ans: 32.0°)
Q: 3. A 5 kg block is initially at rest on a horizontal frictionless surface. Two forces, F = (4 – x2)i…
A:
Q: A student in a lab exerts a force of 25 N on an angle to pull a block by a distance of 48 cm. If a…
A: Given data :- Force F = 25 N Displacement d = 48 cm = 0.48 m Work done W = 11 J
Q: 8. Find the work done by the force if the object moves 10 m away along x-axis. The coefficient of…
A: Write a given values of this question. m=20kgx=10mμ=0.2F=3x+4yθ=30∘
Q: 11. The longest shish kebab ever made was 881.0 m long. Suppose the meat and vegetables are placed…
A: We will find the net force on the cart along the direction it is moving and then product it with…
Q: 1. How much work would a 60.0 kg person do in climbing from the surface of the Earth to the top of a…
A: We are given weight of person. We are also given the height of mountain. The work done is the…
Q: . A large box slides first up, and then down, an incline. The incline has friction. Which of the…
A: Friction force tends to oppose the motion relative to the surface in contact. Thus friction force…
Q: A force of 6.0 N is used to accelerate a mass of 1.0 kg from rest for a distance of 12m. The force…
A:
Q: C4. In the general expression for the work W by a force F, W = F. ds, the vector ds is... a small…
A: Answer C4: The correct options is C i.e, a small element of displacement of the point of application…
Q: QUESTION 4 The work done by any force can be calculated by using the formula W = F s cos(e) where…
A: The work by any force can be calculated by using the formula is W=Fscosθ Here F is the applied…
Q: 51+81-2k. If the displaceme Two force vectors are given P = î+2ĵ+4k, and Q = vector is D = 1-5ĵ+2k,…
A: The resultant of two forces is R→=P→+Q→ Substitute the vectors P and Q…
Q: 10. Which of the following is ALWAYS TRUE about conservative and nonconservative forces? A. The…
A: Conservative force :- If the work done by a force depends only on the initial and final position or…
Q: 6. A constant horizontal force of magnitude 2.00 [N] is exerted in pushing a box a distance = 13.0…
A: Given: The magnitude of the horizontal force is 2 N. The displacement of the object is 13 m along…
Q: A car runs out of gas at the bottom of a hill. It rolls 70 m before coming to a complete stop. If…
A: Given: The mass of the car is 800 kg. The angle of inclination is 10°. The coefficient of friction…
Q: 7. A Crate with mass 8.0kg is pulled up a 30° incline by a rope angled 18° above the incline. The…
A: Given Mass = 8 kg Theta = 30° Rope angle 18° Friction coefficient 0.25 Tension in Rope 120N Using…
Q: 3. A constant force of 20.0 N is applied to an object of mass 8.00 kg at an angle of 25.0° with the…
A:
Q: 2. A spring on a horizontal surface can be stretched and held 0.5 meters from its equilibrium…
A: Given: The stretching in the spring due to force 50 N is 0.5 m from the equilibrium.
Q: A 240 kg cable that is 100 m long hangs vertically from the top of a tall building. a. How much work…
A:
Q: Person X pushes twice as hard against a stationary brick wall as person Y. Which one of the…
A: Given: Person X pushes twice as hard against a stationary brick wall as person Y. To Find: Which one…
Q: 8.) When a force acts on an object from an angle other than either 0° or 180° to the direction of…
A: When a force acts on an object from an angle other than either 0° or 180° to the direction of motion…
Q: Calculate the work done when a 5.0 kg bag of apples is lifted 1.2 m off the ground. 13 c)…
A:
Q: Describe a situation where an object is in motion but no physical work is being accomplished.…
A: Consider the situation where a person carrying a suitcase on his head and walking. Now for an…
Q: The force on a particle is directed along an x axis and given by F = Fo(x/xo - 1) where x is in…
A: work done by a force is given by W =∫F→.ds→
Q: Two forces oppose one another by acting in opposite directions on a 10 kg object, one being a…
A: We are given 2 forces. They are acting in opposite direction. One has constant magnitude, other has…
Q: 10. A tow truck pulls a car by a cable that makes an angle of 30° to the horizontal. The force…
A:
Q: 2. A force acting on an object moving along the x axis is given by Fx=(14x- 3.0x) N where x is in m.…
A: Given- Fx = 14x - 3x2 N x moves from, x = -1 m to x = 2 m,
Q: 5. Find the work done by the force (F = 100 N) on moving the object 50 m. The coefficient of kinetic…
A:
Q: 4. A frictional braking force is applied at an angle on an object. The frictional braking force is…
A: Given: The magnitude of the frictional force is 500 N. The displacement of the object is 20 m. The…
Step by step
Solved in 2 steps with 1 images
- 42. A physics student applies a 21.6 N force downward at an angle of 57.2 degrees with the horizontal to displace a broom a distance 6.28 m to sweep up broken lab glass. Determine the work done by the student.A. 73.5 JB. 65.7 JC. 57.8 JD. 78 J1. A 5kg block is push up a rough, inclined surface by a constant force of 20N. The surface is inclined at an angle of 15° and the force is applied completely horizontally and parallel to the ground below the incline. (Not parallel to the inclined surface). As a result, the velocity of the block increases from 0 m/s to 4 m/s in a displacement of 10m. A)What work was done by the frictional force during this displacement? B)What would have been the final velocity if friction was not present? C) Why was the final kinetic energy without friction higher than the total kinetic energy with friction?A 15.1-kg box is being pushed from the bottom to the top of a frictionless ramp. When the box is pushed at a constant velocity, the nonconservative pushing force does 58.0 J of work. How much work is done by the pushing force when the box starts from rest at the bottom and reaches the top of the same ramp with a speed of 1.50 m/s? Wnc = Number i Units
- Which of the statements below is true when you catch a baseball that comes at you horizontally? a. The work that you do is positive. b. The work that you do is negative. c. Work is not a vector and cannot be referred to as positive or negative. d. Work is a scalar product expressed in terms of magnitudes, so it is never negative. e. Work is expressed in terms of kinetic energy, which must be positive.4. Identify a case where an object is moving over a surface with friction, but the frictional force does no work.The force on a particle is directed along an x axis and given by F = Fo(x/xo - 1) where x is in meters and F is in Newtons. If Fo= 1.4 N and xo = 2.3 m, find the work done by the force in moving the particle from x = 0 to x = 2x0 m. Number i Units
- 1. How much work was done by a machine that exerts a 5000 N force to compress a 10-meter-long steel bar so it becomes 3 meters in length. 2. Find the angle between the 500 N applied force and the 3-meter displacement if the work done is 1500 Joules. Hiii please write a solution thank you5. A person pulls an object of mass 40 kg as far as 20 m above a flat floor at a constant speed. The force used is directed 370 upwards horizontally. The coefficient of kinetic friction of the object with the floor is 0.20. Determine the work by the person, the work by the frictional force, and the total work on the object.7. A 1650 kg car accelerates up a hill by applying a force of 4.61 × 10³ N parallel to the hill. The hill is at an incline of 13°. m 2016 d = 17 m 13° A. What is the net work done on the car as it travels 17 m up the hill? (Hint: calculate the work done by each force in the system. There are 3 forces. The net work is the sum of the works done by each individual force.) b. What is the change in kinetic energy for the car? at the bottom of the hill. How fast is it moving at the top The car is travelling at a speed of 16 of the hill? I= c) 74°F
- 4. The horse in Figure 10 pulls a rider on a sleigh across a snowy horizontal field. The force of the rope is 22.8 N, and the horse does 9.53 × 10? J of work pulling the sleigh a distance of 52.6 m. Calculate the angle between the rope and the horizontal. DAThe force on a particle is directed along an x axis and given by F = Fo(x/xo - 1) where x is in meters and F is in Newtons. If Fo= 1.5 N and Xo = 5.8 m, find the work done by the force in moving the particle from x = 0 to x = 2x0 m. Number i Units