A personal lifts a box of mass 10kg a distance of 3 meters above its original height (at a constant velocity)
a. What is the work done by the weight?
b. What is the work done by the person?
A personal lifts a box of mass 10kg a distance of 3 meters above its original...
Consider a box on the floor of a large factory. The mass of the block is 10kg. The box needs to be pushed along the floor a distance of 125 meters. The coefficient of dynamic friction between the box and the floor is 0.25. Please show work and go step by step! a. Compute the force required to push the box at constant speed along the floor. b. How much work is being done pushing the box across the floor?...
A cable lifts a 1300-kg elevator at a constant velocity for a distance of 35 m. What is the work done by each of the following?
1)A toy car with a mass of 4 kg is driving up an inclined ramp. It starts at a speed of 3 m/s, and after it has traveled a distance of 2 m up the ramp it comes to a stop. How much total work was done on the toy car? 2)A girl lifts a 1 kilogram box vertically a distance of 1 meter, at constant speed. What is the total work done on the box (rounded to 1 significant...
I Want ONLY THE ANSWER WITHOUT THE SOLUTION
QUESTION 3 A man lifts a box of mass 35 kg by using a pulley, as shown in the diagram. If he does 2450 J of work in lifting the box to a height of 6 m at a constant speed, how much work did he have to do in overcoming the friction within the pulley? give your answer in units of joules shufterstsck
10 of 20 Student A lifts a box of mass m to a height of h. Student B lifts a box of mass 2 m to a height of h/2. Which student exerted the greatest power? Student A Student B Neither student A nor student B (The students exerted the same power.) Not enough information 12 of 20 How much energy is stored in spring that has been compressed 0.20 m if the spring constant is 300 N/m? 9000 J...
A weight lifter lifts a set of weights a vertical distance of 1.74 m. If a constant net force of 398 N is exerted on the weights, how much net work is done on the weights? Answer in units of J. The force required to stretch a Hooke's-law spring varies fr6m 0 N to 74.9 N as we stretch the spring by moving one end 14.5 cm from its unstressed position. Find the force constant of the spring. Answer in...
2. A conveyor lifts de-icing salt from 3 feet above ground to a height of 17 feet, then drops it, forming a conical pile 14 feet high and 45 feet in diameter. Assume the weight density of the salt is 80 lbs/ft (a) Find the total work done by the conveyor in lifting the salt. (b) Find the total work done by the force of gravity in moving the salt into its conical shape as it drops from the end...
3. Starting from rest, a box of mass M slides through a distance d down a incline. The coefficient of friction on the plane is ple (a) Draw a free body diagram. (b) Determine the work done by the gravity- express this in terms of M, g, e, d. (c) Determine the work done by the friction-express this in terms of M, g, 0, d, u. (d) Use Work-Energy theorem to determine the final velocity of the box.
A kid with 50kg runs and jump onto a tire swing with mass of 10kg. The tire and the kid rise 1.25m. a. what is the kid's initial velocity? (must use conservation of momentum at least) b. if the rope is 10 meters, what is the max tension? (draw a free body diagram) c. What is the tension when the swing is at maximum height?
A rope 26 meters long passes through a pulley h meters above the ground on a flagpole. On one end of the rope is a weight that is w meters above the ground and at the other end is a person holding the rope x meters from the flagpole; see picture. flagpole pulley rope h weight person ground We can relate the quantities x,h,w via the equation: 26=h-w+ x2+h2 (a) When the pulley is 9 meters above the ground and...