A box is pushed across the floor for a distance of 5 meters with an inclined force of 50 Newtons, which makes an angle of 20 degrees with the floor, in 5 seconds. a. Calculate the work done in J. b. Calculate the power expended in W.

Q: A 2.78 kg cart moving along a horizontal track in the positive x-direction has a changing force…

A: Given, Mass of the cart, m = 2.78 kgPoints,A = (0, 4)B = (0.05, 0)C = (0.15, -3)D = (0.40, 0)

Q: A small plane tows a glider at constant speed and altitude. If the plane does 2.00 x 105J of the…

A:

Q: As block slides down an inclined plane. Identify the forces that are NOT doing any work.   I.…

A: A block slides down in an inclined plane is shown as, Here, FN is the normal force, fk is the…

Q: box slides down a surface that is inclined at 53° below the horizontal. The coefficient of kinetic…

A: Givenm=8 kgθ=53°μk=0.4

Q: 1. The figure to the right shows a mall shopper pushing on a 11.0 kg grocery cart by constant force…

A:

Q: Which of the following is wrong ? a. A body in "free fall has no net force acting on it b. A force F…

A: From Newton's first law a body with no net force acting on it will continue to be in motion or…

Q: What power on the cable does it require to lift a 250 kg elevator cab and 4 passengers each with a…

A: mass of elevator cab = 250 kg Number of passengers = 4 mass of each passenger = 50 kg Height (h) =…

Q: 1. A 5 kg block is lifted vertically at a constant velocity of 12 m/s through a height of 12 m. a.…

A:

Q: 5. A factory worker pushes a 42.5-kg crate a distance of 11.2 meters along a level floor at a…

A: Given that: The mass of the crate is m=42.5 kg The distance is d=11.2 m The coefficient of kinetic…

Q: A 2.00-kg (20.0-N) stone is dropped from a height of 5.0 m, and strikes the ground with a velocity…

A: Given data: Mass, m=2 kg Height, h=5 m Velocity, v=8 m/s Question is to find the work done by the…

Q: A man pulls a box weighting 40 Na distance of 10 m across the floor at constant speed. How much work…

A:

Q: A mechanic uses a chain and bloc pulley to lift a 875-kg engine 4.0 m to the top of the garage. the…

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: A box is pulled upon a rough inclined plane by an applied force Fa parallel to the plane. Which…

A: Given data:  Box pulled upon a inclined plane Plane is rough Applied force is parallel to the plane…

Q: Work 2. An 8.0kg box slides down a surface that is inclined at 53° below the horizontal at a…

A:

Q: 2. A rollerskate is dragged across the ground for 3.4 meters, by someone pulling on its shoelace.…

A:

Q: 270kg load is lifted 21.0m vertically with an acceleration a=0.170g by a single cable. A. Determine…

A:

Q: An object of mass m=1.2 kg is sliding from top to bottom of an inclined plane of inclination angle 0…

A:

Q: A net external non-conservative force does positive work on a particle. Based solely on this…

A: The work done on the particle by the net external non-conservative force is equal to the change in…

Q: A 45 kg skier starts from rest and skies down a hill that is angled at 17 degrees from horizontal.…

A: Work done is given as the dot product of force vector and displacement vector . Also according to…

Q: A 0.5 kg pendulum is released from rest. If the cord is 12 m long and the bob (the ball part of the…

A: Since you have posted a question with a multiple sub parts, we will solve first three sub - parts…

Q: P is 160 N that pushes a 20.0 kg cube on a rough surface, over a distance of 8.00 m, the speed…

A: In the given question, Magnitude of force P = 160 N Mass of cube (m) = 20 kg Distance travelled (s)…

Q: A 60 kg box is pulled by a rope with a force 240 N in the horizontal direction. a) If the…

A:

Q: A 18 kg crate is being pushed 7.6 m across a level floor by a 92 N horizontal force. The μk between…

A: Applied force = 92 N distance moved = 7.6 m Frictional force = 0.35 * weight Frictional force = 0.35…

Q: Starting from rest, a box of mass m (24 kg) moves to the right 18.0 m when pulled by a tension force…

A: Since you have posted a question with multiple sub-parts, we will solve the first three sub-parts…

Q: A luggage handler pulls a 20.0 kg suitcase up a ramp inclined at 25° above the horizontal by a…

A:

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: A box weighs 49 N is pulled 6.0 m up along a 37° inclined plane. What is the work done by the weight…

A:

Q: A force of a constant magnitude pushes a box up a vertical surface. The box moves at constant speed.…

A:

Q: Josh pushes a 48.0-kg shopping cart with a force of 85.0 N in a direction 35.0° below the horizontal…

A: mass of cart = 48 kg Applied force = 85 N direction of force applied (θ) = 35o below horizontal axis…

Q: An object of mass m=1.6 kg is sliding from top to bottom of an inclined plane of inclination angle 0…

A: The free body diagram is shown as below: Coefficient of friction = μ=0.4 Mass of the block = m =…

Q: A box is pulled 2.0 meters along a rough surface at constant velocity using 100 N force inclined at…

A:

Q: An elevator is lifted by its cables at a constant speed. Is the total work done on the elevator…

A: If the elevator lifted by cables on the elevator two forces are acting 1) gravitational force…

Q: A box of mass 3 kg is moving to the right at 5 m/s and has an acceleration to the left of -2 m/s2.…

A: Hi, as this problem contains multiple sub-parts, hence the first three sub-parts will be solved for…

Instantaneous Power

Power is defined in physics as the amount of energy transmitted or transformed per unit time. The watt is the unit of electricity in the International System of Units, equivalent to one joule per second.