calculate the work done by a 40 N force pushing a 0.5 kg toy 2.3 m
Work Done (
)
by a Force (
)
for moving by displacement (
)
in the direction of force

but the angle between Force and displacement is 0 .
therefore,

Calculate the work done by a 50 N force pushing a cube 0.25 m.
A 9-month-old boy is pushing down on his Fisher-Price Popcorn Popping walker toy. The toy has a mass of 4 kg and is moving with a constant velocity of 2.3 m/s. The boy is pushing down with a force at an angle of 45owith respect to the ground. There is a frictional force of 30 N acting on the toy. Determine the force of the boy acting on the handle. Ans:42.4N EXPLAIN IN DETAIL.
From "Pushing with non-constant force," question 1: What did you calculate for the total work done by the force F_p in the displacement from position x = 0 m to x = 4 m? How did you reach this answer?
A 60 kg person is pushing a 40 kg wheelbarrow. Assume the system is frictionless. The wheelbarrow accelerates at 1.2 m/s2. What is the force exterted by the person on the wheelbarrow? A 60 kg person is pushing a 40 kg wheelbarrow. Assume the system is frictionless. The wheelbarrow accelerates at 1.2 m/s2. What is the force exterted by the person on the wheelbarrow? 74 N 48 N 60 N 70 N 72 N
Homework: Work and Forces A person is pushing a 50 kg refrigerator for 3 seconds with a constant force of 300 N across the kitchen floor where the coefficient of friction is 0.53: Make a complete model and calculate the total work done on the box, the work done by friction, and the work done by the person.
A horizontal force of 150 N is used to push a 40-kg box on a rough, horizontal surface through a distance of 6 m. If the box moves at a constant speed, find: a) the work done by the 150 N force b) the work done by friction c) the coefficient of kinetic friction
You are pushing a 8.4 kg box on a table with 1.2 N of force, and your friend is pushing in the opposite direction with a force of 10 N. What is the acceleration of the box (in m/s2)? Ignore friction.
A warehouse worker is pushing a 90.0 kg crate with a horizontal
force of 292 N at a speed of v = 0.875 m/s across the
warehouse floor. He encounters a rough horizontal section of the
floor that is 0.75 m long and where the coefficient of kinetic
friction between the crate and floor is 0.359.
(a)
Determine the magnitude and direction of the net force acting on
the crate while it is pushed over the rough section of the...
A warehouse worker is pushing a 90.0 kg crate with a horizontal force of 276 N at a speed of v = 0.865 m/s across the warehouse floor. He encounters section of the floor that is 0.75 m long and where the coefficient of kinetic friction between the crate and floor is 0.357. (a) Determine the magnitude and direction of the net force acting on the crate while it is pushed over the rough section of the floor. (b) Determine the net...
Force (N) 40 1.00 60 8 0 Position (m) Find the work done by the force in moving the object from 0.40 m to 1.20 m. Explain your calculation and give units. Answer: 7. Assuming that there is no friction and that the object in Question 6 starts from rest at 0.40 m, what is the object's kinetic energy when it reaches 1.20 m? Show your calculation and give units. Answer: 8 What is the velocity of the object in...