During the Powerhouse lab, Gab runs up the stairs, elevating his 98 kg body a vertical distance of 3 meters in a time of 1.7 seconds at a constant speed. a. Determine the work done by Gab in climbing the stair case. b. Determine the power generated by Gab

Q: A worker pushes a 30.0-kg crate a distance of 4.5 m along a level coefficient of kinetic friction…

A:

Q: 1B. A crate of mass 10.0 kg is pulled up a rough 200-incline. The pulling force is 100 N parallel to…

A: (d) The direction of the normal force is perpendicular to the inclined plane, in which it has no…

Q: 14 POINTS SERCP11 5.1.P.004. A shopper in a supermarket pushes a cart with a force of 32 N directed…

A:

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

A:

Q: To push a 28.0 kg crate up a frictionless incline, angled at 25.0° to the horizontal, a worker…

A: Given data-                    Mass of crate m=28.0 kg                    Force exerts by worker=219…

Q: A 300 g block is dropped onto a relaxed vertical spring that has a spring constant of k = 3.0 N/cm…

A:

Q: In the figure, a 20-kg box is on a rough horizontal surface. A constant external force F = 50 N is…

A: Given data: Mass (m) = 20 kg Constant external Force (F) = 50 N Distance (s) = 3.00 m Initial…

Q: Draw a sketch and also a good FBD to identify the relevant forces doing work. Pay attention to the…

A:

Q: The goal of a worker is to slide a 20-kg crate up a 2.5 m-long inclined at 25°. The worker was…

A: Given information: Here, m is the crate’ mass, θ is the inclination angle, s is the actual distance…

Q: A 300 g block is dropped onto a relaxed vertical spring that has a spring constant of k = 4.8 N/cm…

A: The work done by the force of gravity is  WG=mgh                                  .......(1) The…

Q: Suppose the ski patrol lowers a rescue sled carrying an injured skiier, with a combined mass of 85…

A: Since we only answer up to 3 sub-parts, we’ll answer the first 3. Please resubmit the question and…

Q: A 340 g block is dropped onto a relaxed vertical spring that has a spring constant of k = 2.1 N/cm…

A: NOTE: According to the guidelines we are allowed to answer the first 3 sub-parts of a question. If…

Q: A 360 g block is dropped onto a relaxed vertical spring that has a spring constant of k = 1.0 N/cm…

A: Given that, Spring Constant, k=1.0 N/cm Mass of the Block m=0.36 kg Spring Compresses total =0.17 m

Q: (a) Calculate the force the woman exerts to do a push-up at constant speed, taking all data to be…

A: Given:  m = 50 kg  d = 0.9 m  d' =  1.5 m

Q: During a flood, a rescue helicopter was used to lift a 79-kg person to safety. The person has an…

A:

Q: A net external force is applied to a 7.13-kg object that is initially at rest. The net force…

A:

Q: (a) A 75.0 kg man pushes on a 5.0 x 105 ton wall for 250 s but it does not move. How much work does…

A: (a) F=Forces=Displacement of wall=0 Work done is given by W=Fs=F×0=0 The work that the man does on…

Q: 1. a) Calculate the work done when a truck pulls on a load at a 35° angle with a force of 4000 N and…

A:

Q: A 600 N hiker carries a 2.0 kg knapsack up a trail. After 30 minutes, the hiker is 300 m higher than…

A: We  know that when an object is on the height of h from the ground the  Gravitational potential…

Q: 6.20 • A 4.80 kg watermelon is dropped from rest from the roof of an 18.0 m-tall building and feels…

A: Given: The mass of the watermelon is 4.80 kg. The height of the building is 18.0 m.

Q: A 5-kg package is pushed 2 m up a ramp that is inclined at 120 above the horizontal by a 100-N force…

A:

Q: A 4.80 kg watermelon is dropped from rest from the roof of an 18.0 m-tall building and feels no…

A: a) The expression used to work done by gravity on watermelon is W=mgh Substitute values in the above…

Q: 2. A dockworker pushes an 80 kg crate with a downward force of 400 N, directed at an angle of 30° to…

A:

Q: A 5-kg package is pushed 2 m up a ramp that is inclined at 12° above the horizontal by a 100-N force…

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

Q: 4. A 128.0-N box is pulled up a frictionless ramp inclined at 30° from the horizontal at a distance…

A:

Q: A 200 g block is dropped onto a relaxed vertical spring that has a spring constant of k = 4.4 N/cm…

A:

Q: A 4.80-kg watermelon is dropped from rest from the rot à 18.0-m-tall building and feels no…

A: Given Mass of object m = 4.8 kg h = 18 m

Q: On an essentially frictionless, horizontal ice rink, a skater moving at 5.0 m/sm/s encounters a…

A: Given data:

Q: A child drags her toy box (m = 4 kg) up a hill by applying a force F = 25î + 35(N). The surface of…

A:

Q: A 300 g block is dropped onto a relaxed vertical spring that has a spring constant of k = 1.1 N/cm…

A:

Q: A horse pulls a cart with a force of 15 lb at an angle of 34° above the horizontal and moves along…

A: applied force (F) = 15 lb Angle (θ) = 34o above the horizontal Constant speed (v) = 6.7 mihr

Q: A horizontal force of 20 N is required to keep a 5.0 kg box traveling at a constant speed up a…

A: a) The required work done is, b) The required work done by the normal force is,

Q: P3 A 4.80-kg watermelon is dropped from rest from the roof of a 25.0-m-tall building and feels no…

A: Given that, Mass of a watermelon, m = 4.8 kg It was dropped from a 25 m tall building, h = 25 m (a)…

Q: A 5-kg package is pushed 2 m up a ramp that is inclined at 12o above the horizontal by a 100-N force…

A: Note : Since there are multiple sub-parts and as per guidelines we can provide solution to first…

Q: A 250 g block is dropped onto a relaxed vertical spring that has a spring constant of k = 2.5 N/cm…

A: Given:m=250 g=0.25 kgk=2.5 N/mx=17cm=0.17m

Q: A force of 6.0 N is used to accelerate a mass of 1.0 kg from rest for a distance of 12 m. The force…

A: Given, Force=6.0 N Mass = 1.0 kg Distance = 12 m Coefficient of kinetic friction = 0.30

Q: A tow rope, parallel to the water, pulls awater skier directly behind the boat with constant…

A: Given ,  the distance traveled by water skier on water = distance traveled by boat d =72 m…

Q: A 75.0 kg painter climbs a ladder that is 2.75 m long and leans against a vertical wall. The ladder…

A: l=Length of ladder=2.75 mθ=Angle ladder makes with wall=30°g=Accleration due to gravity=9.81 m/s2

Q: A 6.00-kg watermelon is dropped from rest from the roof of a 30.0-m-tall building and feels no…

A: When a body is made to fall from a height h, assuming no air resistance, then Potential energy…

Q: A 200 g block is dropped onto a relaxed vertical spring that has a spring constant of k = 4.4 N/cm…

A: Mass , m = 200 g = 0.2 kg Spring constant , k = 4.4 N/cm = 440 N/m Spring compression , d = 19 cm =…

Q: A horse pulls a cart horizontally with a force of 40 lb at an angle of 30- above the horizontal and…

A: Work is defined as dot product of force vector and displacement vector. Power is defined as dot…

Q: Problem 7: A skateboarder with mass m, = 36 kg is standing at the top of a ramp which is h, = 3.1 m…

A:

Q: A 340 g block is dropped onto a relaxed vertical spring that has a spring constant of k = 2.1 N/cm…

A:

Q: 6.20 A 5.10-kg watermelon is dropped from rest from the roof of a 29.0-m-tall building and feels no…

A: mass, m = 5.10 kg height, h = 29 m

Q: Suppose the ski patrol lowers a rescue sled and victim, having a total mass of 90.0 kg, down a 60.0º…

A: Work done by a force over a displacement can be calculated using the following relation. W=Fd cosθ…

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.