A 64 kg student travels from the first floor to the fourth floor of a school (a height of 15 m). What total work did she do climbing the stairs? How long would this trip last if the student produced 240 W of power?

Q: A boy rides a bicycle a distance of 10 m, carrying a bag which weighs 50 N. What is the work done on…

A: Force, F = 50 NDisplacement, d = 10 m The work done on the bag will be given by the formula W = F.d…

Q: While rearranging a dorm room, a student does 436 j of work in moving a desk 1.6 m. What was the…

A: Amount of work done by the student, W = 436J displacement of the object, d = 1.6m Horizontal force…

Q: A force of F = 159 N pulls a mass of 15 kg a distance of x = 4.8 m. How much work is done by the…

A:

Q: A 72.3 kg student runs up the stairs of a football stadium to a height of 11.1 m above the ground in…

A: Power is defined as the Work Done or Energy per unit time.P=Et The energy of an object of mass m at…

Q: How much work does a 69 kg person do against gravity in walking up a trail that gains 760 m in…

A: Work is a physical amount due to an outside force acting on a body to change position from a initial…

Q: At a playground, a 19-kg child plays on a slide that drops through a height of 2.3 m. The child…

A:

Q: A force of 40 N is required to maintain a spring stretched from its natural length of 12 cm to a…

A:

Q: If a small motor does 500 J of work to move a toy car 250 m, what force does it exert?

A: Work Done ( W ) = Force (F) * Distance moved (D) where W is in J ( Joules) F is in N (Newtons) and D…

Q: How much work does Khalil perform in pushing a 35 Newtons crate a distance of 4 meters?

A: Given ,            force needed to push  crate (F) = 35 N            displacement in the direction…

Q: How much work is done in moving an object of mass 1 kg to a height of 4 m? (g. 9.8 m/s )*

A:

Q: how much work do you do by pushing a sack of cement with a force of 300 N across a distance of 8…

A: Given data: Force (F) = 300 N Distance (s) = 8 m Required: Work done (W)

Q: Suppose a person pushes a box over a distance of 4.38 m with a constant force  of 330.2 N.  How much…

A: The solution is given below

Q: How much power will a 260 N student develop if he/she climbs a flight of stairs 12 m from the ground…

A:

Q: How many joules of work are done on a box when a force of 25 N pushes it 3 m? a 1J b. 3 J c. 8 J 275…

A: Given : Force (F) = 25 N Displacement (d) = 3 m

Q: A weight lifter lifts a 380-N set of weights from ground level to a position over his head, a…

A: Step 1Work done by a body is given as the force applied on it over the distance travelled.For the…

Q: How much work does it take to stop an 800 kg car traveling at 25m/s? If it takes 2 s to stop, what…

A: Given data:  Mass of car (m) = 800 kg Initial speed of car (Vi) = 25 m/s Time (t) = 2 s Required:…

Q: What is the potential energy of a 15 kg dumbbell sitting on a weight bench 0.65 m above the floor?…

A: Given that, Mass of a dumbbell, m = 15 kg It is placed on a bench 0.65 m above the floor. We need to…

Q: A boy throws a ball of mass 0.23 kg straight upward with an initial speed of 26 m/s. When the ball…

A: The initial and the final heights of the ball are the same. So, the change in mechanical energy will…

Q: if a man lifts a 20-kg bucket from a well and does 6 kj of work , how deep is the well ? assume the…

A: Given: The mass of the bucket is 20 kg. The work done is 6 kJ.

Q: A 51-kg woman runs up a flight of stairs in 5.0 s. Her net upward displacement is 5.0 m. How much…

A: Answer Given  Mass m = 51 kg Time t = 5 s Height h = 5 m

Q: A horse pulls a cart with a force of 0.2 kN at an angle of 27 degrees with the horizontal and moves…

A: F = 0.2 kN = 0.2 x 103 N θ = 270 v = 10 kph = 10kmh×1000m1km×1h60min×1min60s = 2.778 m/s t = 12 min…

Q: How much work is done by a table as it holds up a 3.8 kg cat? Your answer: O OJ 3.8 J 37 J The…

A: The work done to hold up a cat on the table is the potential energy due to the gravitational force.…

Q: What is the potential energy of an airplane that is only 0.5489 km off the ground and weighs 4120 kg

A: Given that, an airplane that is only 0.5489 km off the ground. That means  Distance, d = 0.5489 km…

Q: A crate that has a mass of 20 kg is raised 10 meters above the ground. How much potential point…

A: Potential energy comes due to height only. Its value is given by  P.E.- mgh  m - mass of the object…

Q: A girl pushes her little brother on his sled with a force of 300 N and does work of 600 J. How far…

A: Given  Girl pushes his brother with the force F = 300 N. Work Done W = 600 J We know the expression…

Q: How much work must she do to pull the block up 12 meters? The mass is 43 kg.

A:

Q: your parents demand that you pick up the book and put it on a shelf that is a height of 1.8 m off…

A:

Q: A man applies a force of 100 N to a rock for 60 seconds, but the rock does not move. What is the…

A: Work comes in picture only and only when this is some displacement.  we know W = Force*displacement.…

Q: A bodybuilder lifts a 350 N set of weights from ground level to a position over his head, a vertical…

A: Step 1Work done by a system iswhere F is the force and d is the distance travelled by the system

Q: A cart is pulled at a constant speed along an inclined plane to the height of a seat top. If the…

A: Given data:  Mass (m) = 3.8 kg Height (h) = 0.53 m Required: The potential energy

Q: A truck weighing 3.0 x 10^4 newtons was driven up a hill that is 1.6 x 10^3 meters long to anarea…

A: Weight of the truck  W = 3×104 N The weight is a measure of the force of gravity acting on the…

Q: How much work does a 52-kg woman do against gravity when climbing from the bottom to the top of a…

A: Given: Mass of the woman, m =  52-kg. Height of the staircase, h = 2.8 m.   To Find: The work done.

Q: by the force

A: Given values:- Force Applied,(F)=586 N ----(1) Distance,(d)=15 m----(2) Let us consider (W) work is…

Q: If you push a car with a force of 600 N on a level driveway for 15 m, how much work do you do on…

A:

Q: A force of 30 N is required to maintain a spring stretched from its natural length of 12 cm to a…

A:

Q: A 2.2 kg object is initially moving at 5.78 m/s. After a time of 4.9 s, the object is moving at a…

A:

Q: While carrying a 20 N box, a 500 N girl runs up the staircase to a 5 m higher. What is the work done…

A: Given data The weight of the box is given as Fwb = 20 N. The weight of the girl is given as Fwg =…

Q: how much work is done by a 75kg racer when he increases his velocity from 15m/s to 20m/s

A: Work is the energy transferred to or from a body through the application of force along a…

Q: How much work is done in moving an object of mass 1 kg to a height of 4 m? (g. 9.8 m/s ).

A:

Q: How much force is exerted by the Soccer player in pushing the ball to the goal, having the work done…

A: Given data The work done by the soccer player is given as W = 75 J. The distance covered by the ball…

Q: A 40 kg boy runs up a staircase to a floor 5 m higher in 7 s. What is his power output?

A:

Q: A horse pulls a cart with a force of 0.2 kN at an angle of 27 degrees with the horizontal and moves…

A: Work done on a body can be said to happen when due to the force applied on the body, there is a…

Q: A 40-kg person is climbing 3 m up a flight of stairs in 6 seconds. How much work did they do…

A:

Q: A loaded grocery cart of mass 24.5 kg is pushed along an aisle by an applied force of 14.2 N [22.5o…

A: Given: The applied force is 14.2 N. The mass of the object is 24.5 kg. The angle between applied…

Q: A student who weighs 559 N climbs a stairway vertical height of 3.0 m in 28 s how much work is done?…

A: Weight of a student (w) = 559 N Height of stairway (h) = 3 m Time taken (t) = 28 s

Q: The mass of a baseball is 148 g. How much work does a Major League pitcher do on the baseball when…

A: given:Mass of the ball = 148 gInitial velocity of the ball = 0Final velocity of the ball = 40.2 m/s