Which required more work: lifting uniformly a 50.0 kg crate a vertical distance of 2.0 meters...
Which required more work: lifting uniformly a 50.0 kg crate a vertical distance of 2.0 meters or lifting a 25.0 kg crate a vertical distance of 4.5 meters with a 1.0 m/s^2 acceleration?
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Which required more work: lifting uniformly a 50.0 kg crate a
vertical distance of 2.0 meters...
You are lifting a crate of mass m at a vertical distance h with a constant...
You are lifting a crate of mass m at a vertical distance h with a constant velocity. How much work do you do? Please explain your answer. a) +mgh b) -mgh c) +2mgh d) zero
a) how much work is done in raising a 50.0 kg crate a distance of 1.5...
a) how much work is done in raising a 50.0 kg crate a distance of 1.5 m above a storeroom floor? b) what is the change of potential energy as a result of this move? c) how much kinetic energy will the crate have as it falls and hits the floor? please show work
a) how much work is done in raising a 50.0 kg crate a distance of 1.5 m above a storeroom floor?
a) how much work is done in raising a 50.0 kg crate a distance of 1.5 m above a storeroom floor?b) what is the change of potential energy as a result of this move?c) how much kinetic energy will the crate have as it falls and hits the floor?please show work
What power is expended by a weight lifter when lifting a 66 kg barbell a vertical...
What power is expended by a weight lifter when lifting a 66 kg barbell a vertical distance of 1.4 m in a time interval of 2.0 s
d all the work. Answers are worthless without it! 1. A 50.0-kilogram crate is on a...
d all the work. Answers are worthless without it! 1. A 50.0-kilogram crate is on a slope of 15.00. The slope has a frictional surface where = 205. The crate is released and slides down the slope for 10 seconds. a) What is the acceleration down the slope. B) What the distance the crate travels in 10 seconds? c) What is the crate's velocity after 10 seconds? d) Draw a free body diagram. Assume kinetic and static friction coefficients are...
A crate having a mass 50.0 kg falls horizontally off the back of the flatbed truck,...
A crate having a mass 50.0 kg falls horizontally off the back of
the flatbed truck, which is traveling at 28 m/s. The crate slides
86.8 m on the road in coming to rest. The initial speed of the
crate on the road is the same as that of the truck.
(a). Draw and clearly label all of the forces acting on the
crate as it slides on the road.
(b). Draw the direction of the initial velocity for the...
A person pulls on a 8.7 kg crate as it slides across a level floor using...
A person pulls on a 8.7 kg crate as it slides across a level floor using a rope attached to the center of the crate. The floor has a non-zero coefficient of kinetic friction. The crate began with a speed of 1.4 m/s and speeded up to 2.4 m/s while being pulled a horizontal distance of 2.0 meters. If the force exerted by the rope is 20 Newtons, and the rope pulls completely horizontally, what is the work in J...
A person pulls on a 9.4 kg crate as it slides across a level floor using...
A person pulls on a 9.4 kg crate as it slides across a level floor using a rope attached to the center of the crate. The floor has a non-zero coefficient of kinetic friction. The crate began with a speed of 1.9 m/s and speeded up to 2.8 m/s while being pulled a horizontal distance of 2.0 meters. If the force exerted by the rope is 20 Newtons, and the rope pulls completely horizontally, what is the work in J...
A factory worker pushes a 30.0 kg crate a distance of 4.5 m along a level...
A factory worker pushes a 30.0 kg crate a distance of 4.5 m along a level floor at constant velocity by pushing downward at an angle of 30° below the horizontal. The coefficient of kinetic friction between the crate and floor is 0.25. Part A What magnitude of force must the worker apply to move the crate at constant velocity? Part B How much work is done on the crate by this force when the crate is pushed a distance of 4.5 m? Part C How...
A person pulls on a 9.3 kg crate as it slides across a level floor with...
A person pulls on a 9.3 kg crate as it slides across a level floor with coefficient of kinetic friction 0.5 using a rope attached to the center of the crate. The crate began with a speed of 1.6 m/s and speeded up to 2.7 m/s while being pulled a horizontal distance of 2.0 meters. What is the net change in the kinetic energy in J of this crate during that period?
d all the work. Answers are worthless without it! 1. A 50.0-kilogram crate is on a slope of 15.00. The slope has a frictional surface where = 205. The crate is released and slides down the slope for 10 seconds. a) What is the acceleration down the slope. B) What the distance the crate travels in 10 seconds? c) What is the crate's velocity after 10 seconds? d) Draw a free body diagram. Assume kinetic and static friction coefficients are...
A crate having a mass 50.0 kg falls horizontally off the back of
the flatbed truck, which is traveling at 28 m/s. The crate slides
86.8 m on the road in coming to rest. The initial speed of the
crate on the road is the same as that of the truck.
(a). Draw and clearly label all of the forces acting on the
crate as it slides on the road.
(b). Draw the direction of the initial velocity for the...
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