There is a 100 kg box that starts at rest. a person pushes that box over the course of 18 meters until it is moving at 10 m/s. It takes the person exactly 3.600 seconds to push the box over the 18 meters/ A.How much work was done on the box?  Joules B.What force did the person apply to the box?  Newtons C. What was the power output of the person?  Watts

Q: 6. A child does 350 J of work to lift a box from the ground up to his tree house at a steady speed.…

A:

Q: A sled dog can accelerate a 250 kg sled from 0 m/s to 8.5 m/s in 8 s. (8 Points) a. How far will the…

A: (a) Sleg dog has traveled Xf= 34 m in that time. (b) work done W= 9031.25 Joules

Q: A worker pushes a sled with a force of 50 N over a level distance of 10.0 m. If a frictional force…

A: Concept of Net work done on an object moving on frictional surface: A frictional surface causes an…

Q: 1. How much work is done by a person pushing a box with a constant force of 300 N: a. if it is too…

A:

Q: How much work, in joules, must you do to lift an elephant weighing60 000 N up 1.5 m onto the back of…

A: The objective of this question is to calculate the amount of work done in lifting an elephant onto…

Q: A gunfighter in a western movie fired a 3.0-gram bullet at 400m/s towards a hanging wooden sign that…

A: The objective of this question is to find out the work done by the sign in slowing the bullet and…

Q: How much work (in J) must be done to lift a stack of bricks, which has a mass of 50 kg, from the…

A: Given data The given mass is m=50 kg The height is h=8 m The accleration due to gravity is g=10 m/s2…

Q: Q6. You push a 100-kg file cabinet to the right on a rough horizontal surface with a force of 500 N,…

A: Given:-  The mass of the cabinet m = 100 kg  The pushing force is Fpush  = 500 N  The coefficient of…

Q: A 35.0-kg sled intially at rest slides down a 50.0m-long hill inclined at an angle of 30 degrees…

A: Given: mass,m = 35 kg  length, L = 50 m  Angle, A = 30 degree

Q: A 13 kg mass object initially has 2500 J of kinetic energy. -1200 J of net work is then done on the…

A: Given: The mass of the object is 13 kg. The initial kinetic energy of the object  is 2500 J. The net…

Q: A 1400-N crate rests on the floor. a.) How much work is required to move it at constant speed 5.0 m…

A: Given Weight of the crate is Fg=1400 N Displacement of the crate is d=5.0 m Frictional force is…

Q: A child lifts a 5 kg box up from the floor. The child then carries the box with constant speed of 1…

A: Given : m = 5 kg v = 1 m/s

Q: A 5.5 kg bird is flying 12 m above the ground. Potential energy of bird is calculated to be ?  use g…

A: Given, mass of the bird m = 5.5 Kg Height on which bird flying h = 12 m We know the expression for…

Q: A certain truck has twice the mass of a car. They both move with the same speed. If the kinetic…

A:

Q: A 5.0-kg rock falls off of a 10 m cliff. If air resistance exerts a force of 10 N, what is the…

A: mass, m = 5 kg  height, h = 10 m resistive force, f = 10 N  initial velocity, u = 0 m/s

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: A child pulls a sled across a frictionless surface with a force of 5N directed at an angle of 30…

A: Φ = 30 ⁰  F = 5 N  M = 2 kg

Q: Which of these is an example of no work being done?   a. a child pushes a toy car across a flat…

A: Work done is the energy transferred when a force is displaced by a distance.

Q: What is the kinetic energy of a 12 000 kg truck moving at a speed of 25 m/s? Select one: a. 3.8 x…

A: We know Kinetic energy is given by : K.E.=12mv2 And Given : m=12000 Kg v =25 m/s