Consider a situation where a constant force of 25 N acts on an object having a mass of 2 kg for 3 seconds. What is the work done by the force? O 150 J O 50 J O 75 J O undetermined-not enough information given O none of the above

Q: A force F(x) = (-5.0 x² +7.0 x) acts on a particle. (a) How much work does the force do on the…

A:

Q: Explain about Work done by a force.

A: When a force acts on an object over a distance, it is said to have done work on the object.  It is…

Q: A block of mass, m, is pulled over a distance, d, by an applied force, F, along a smooth horizontal…

A: Applied force = F Displacement = d Here force and displacement is in sane direction . therefore…

Q: What is the work done by the force F? F S1 S2 O Fs None of the above Zero O-Fs

A: Given data:   A force F, towards upward direction The object traveled a distance s Angle between…

Q: A crane slowly lifts a 215 - kg crate a vertical distance of 19 m. V mg F W crane (a) How much work…

A: Given data:  Mass (m) = 215 kg Vertical distance (h) = 19 m Required: The work done by crane,…

Q: A force (2î-45)N moves an object from the pointP (1, 3) m to the point Q (3, 8) m. The work (in J)…

A: Force, F = (2i-4j) The position vector,  P = (1i+3j) and Q=(3i+8j)

Q: You are trying to move a crate with mass 22 kg from A to B onsite. You don't know the value of h,…

A:

Q: 7) A 200-g ball thrown vertically up with an initial speed of 20.0 m/s reaches a maximum height of…

A: A ball of mass (m) = 200g = 0.2kg Initial speed of the ball (u)= 20.0 m/sMaximum height  reached (h)…

Q: Give an example of a frictional force doing positive work

A: Frictional force: This force is act between two rough surface while movement. The frictional force…

Q: (a) What is the kinetic energy in joules of a 1010-kg automobile traveling at 77 km/h?  J (b) How…

A: Given: The mass of the automobile is 1010 kg. The speed is 77 km/h.

Q: Find the work done (in J) by a force, F=3i - 8j N acts on a particle and displaces it Ar = 2i - 7j m

A: If a force (F) displaces a body by some distance (s), then a work (W) is said to be done by a force…

Q: The work done against gravity in taking 5000 grams mass at 39.37 inches height in 1 sec will be

A: Work done is required to pull up a mass of m kg in height 'h' is= mgh Here, g=gravitational constant…

Q: two masses, M and 3M, are connected by a lightweight string which passes over an ideal pulley. the…

A: We are given the 2 masses. One is on horizontal surface and other is hanging vertically. We draw…

Q: How much work W is done by the force to move the object from x=2 m to xy=7 m? F. (N) 6 0 2 4 6 8 10…

A: Given :- Graph between force and distance.

Q: As a ball falls under the influence of gravity, does gravity do positive work or negative work?…

A: Given data:  A ball falls under influence of gravity Required: The work done by gravity is negative…

Q: In physics, the amount of work done on an object is the quotient on the objects and the distance…

A: Work done on an object is the dot product of force applied and the displacement of the object.…

Q: A pitcher throws a ball at 90 mi>h and the catcher stops it inher glove. (a) Is the work done on…

A:

Q: Gravitational force is an example of a non-conservative force. Select one: O True O False A force…

A: Introduction: Gravitational force is conservative in nature because the work done in moving a body…

Q: You are reshelving books in your dorm room. You lift a book from the ground to the top shelf. The…

A: According to the question, the kinetic energy at the ground and at the final height h(say), the…

Q: A body is moving horizontally under the action of a horizontal force 3x N, where x is the distance…

A: Given data-                         force acting on a body(F) = 3x  N   Explanation-…

Q: SITUATION 7: A factory worker pushes a 30-kg crate a distance of 4.5m along a level floor at…

A: Given data: Mass of crate (m) = 30 kg Distance (d) = 4.5 m Velocity is constant. Coefficient of…

Q: In the figure shown, if the mass (m-9 Kg) is moving with constant speed and traveled a distance d=16…

A:

Q: A force É = 12 N î - 10 N î acts on an object. How much work does this force do as the objęct moves…

A:

Q: the work done is" O negative zero O positive could be positive or negative

A: The work done will be negative.Option 1 is right.

Q: In which case below is work not being done? Pushing a car a distance of 0.5 m. O Walking down a…

A: Pushing against an immovable wall is the correct answer

Q: 14) As the time needed to run up a flight of stairs deceases, the amount of work done by gravity; a)…

A: Given :  As the time needed to run up a flight of stairs decreases,  Find:- The amount of work done…

Q: The work done by kinetic friction can be. O Positive O Negative O zero Oany of the above

A:

Q: A block of mass 10 kg is moved 10 m to the right over flat ground. If the coefficient of kinetic…

A: The kinetic frictional frictional force acting on the block of mass m moving on a flat surface is…

Q: A friend makes the statement, “A force that is always perpendicular to the velocity of a particle…

A: When a body moves to some distance under the influence of force then the work is said to be done.…

Q: - A force of  F =(6i-2j) N acts on a particle, causing a displacement of d =(2i+3j) m. Find the work…

A: The work done by the force on any particle is defined as the dot product of Force vector and…

Q: 4. A 10kg object is travelling at a speed of 10m/s and then encounters a rough patch for 2m after…

A:

Q: I Review I Constants An 8.5 kg crate is pulled 5.4 m up a 30° incline by a rope angled 19° above the…

A:

Q: Q. 21: To push a 32 kg crate across a floor a worker applies a force of 190 N directed at the angle…

A:

Q: One of the forces exerted on a particle is F = Bx'i, where B = 6 N/m². How much work does F do (in…

A: Given: The force exerted on the particle is F=βx2i, where β=6 N/m2. The movement of particle is…

Q: Problem 6: A toy cart is pulled a distance of 6.2 m in a straight line across the floor. The pulling…

A: Given data :- Displacement (along the floor) d = 6.2 m Pulling force Fp = 19.2 N Angle θ between…

Q: (a) What is the kinetic energy in joules of a 1030-kg automobile traveling at 90 km/h?  J (b) How…

A: The mass of the automobile is m = 1030 kg. The initial velocity of the automobile is u = 90 km/h.…

Q: A 2 kg rock is thrown upward, with a speed of 5 m/s and returns to the same spot, with the same…

A: Give Mass m = 2 kg Initial velocity is U = 5 m/s in upward direction.  Final velocity is V = 5 m/s…

Q: 17) Under the influence of a fore, an object of mass 4 kg accelerates from 3 m/s to 6 m/s in 8…

A:

Q: If the force or a component of that force points in the opposite direction as the displacement, the…

A:

Q: Identify a case where an object is moving over a surface with friction, but the frictional force…

A: When the object moves in a pure rolling motion, the work done by the friction will be zero.

Q: 1. A crate of mass 10.0 kg is pulled up a rough 20 degrees incline. The pulling force is 100 N…

A: This is the FBD for the given system. Here, m = 10 kg θ = 200 F= 100 N µ = 0.4 d = 5 m