Starting from rest, you drag a 30.0 kg box as shown below. Your force is 200.0 N while friction applies a 185 N force.
What is the box's speed if you drag it across the ground for
5.00 meters?
______________ m/s
With a starting velocity of 2 m/s to the right, you drag a 30.0 kg box for 4 meters, as shown below. Your force is 200.0 N and the box's final velocity is 1.15 m/s to the right.
How much work did friction do?
______________ J
What is the force of friction? Include direction, by which we
mean include a minus sign if the force is to the left.
______________ N
Starting from rest, Chris and Hank pull on a box in opposite directions, as shown. Chris pulls with 220.0 N, Hank pulls with a force of 150 N, and friction is 50 N to the right.
What will be the box's kinetic energy after it moves 3.00 meters
to the left?
______________ J
Fpull=150NFpull,x=120NFpull,y=90NFgravity=300NFfloor=210NFfriction=100N
What is the work done by friction?
______________ J
What is the work done by gravity?
______________ J
What is the work done by the floor?
______________ J
What is the work done by Lucy?
______________ J
What will be the box's kinetic energy?
______________ J
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Starting from rest, you drag a 30.0 kg box as shown below. Your force is 200.0...
Starting from rest, a student pulls a (25.0+A) kg box a distance of (4.50 + B) m across the floor using a (134 + C) N force applied at 35.0 degrees above horizontal. The coefficient of kinetic friction is 0.220 between the floor and the box. Find the work done by the pulling force. Give your answer in joules (J) and with 3 significant figures. A=1 B=3 C=11
Starting from rest, a 3.2-kg box is pushed on a horizontal floor with a force of 482.6 N parallel to the floor. The coefficient of kinetic friction between the box and the floor is 0.5. What is the kinetic energy of the box after it has been pushed with the constant force of 5.8 meters?
3. Starting from rest, a 5.20-kg block slides 1.60 m down a rough 30.0° incline. The coefficient of kinetic friction between the block and the incline is μk = 0.436. (a) Determine the work done by the force of gravity. J (b) Determine the work done by the friction force between block and incline. J (c) Determine the work done by the normal force. J (d) Qualitatively, how would the answers change if a shorter ramp at a steeper angle...
As shown in the figure below, a box of mass m = 51.0 kg
(initially at rest) is pushed a distance d = 98.0 m across a rough
warehouse floor by an applied force of FA = 200 N directed at an
angle of 30.0° below the horizontal. The coefficient of kinetic
friction between the floor and the box is 0.100. Determine the
following. (For parts (a) through (d), give your answer to the
nearest multiple of 10.)
(a) work...
A boy pulls a 20.0-kg box with a 160-N force at 39° above a horizontal surface. If the coefficient of kinetic friction between the box and the horizontal surface is 0.18 and the box is pulled a distance of 30.0 m, what is the net work done on the box?
A 20 kg box s initially at rest. Two forces drag. it across the floor, F_1 = 35 N i and F_2 = 35 N j, which cause a displacement of 3.5 m Imagine the x-y plane lies on the floor. (a) Draw the displacement vector and show (no need to calculate) the direction in which the package moves? (b) How much work is done by each force individually (F_1 and F_2)? (c) The coefficient of kinetic friction between the...
AS shown in the figure below, abox of mass m·590kgnitially at rest) is pushed a distance d-65 0 m across a rough warehouse floor by an applied force of FA-238 N directed at an nec, 30.0 the horizontal. The coefficient of kinetic friction between the floor and the box is 0.100. Determine the following (For parts (a) through (d), give your answer to the nearest multiple of 10.) (a) work done by the applied force -133974 (b) work done by...
12. |-/3 POINTS MY NOTES ASK YOUR TEACHER Starting from rest, a 4.90-kg block slides 3.00 m down a rough 30.0° incline. The coefficient of kinetic friction between the block and the incline is Mx = 0.436. (a) Determine the work done by the force of gravity. נר (b) Determine the work done by the friction force between block and incline. CJ (c) Determine the work done by the normal force. CJ Show My Work (Optional)
A box of mass 40 kg is initially at rest on a flat floor. The coefficient of kinetic friction between the box and the floor is µk = 0.40. A woman pushes against the box with a force of 250 N that makes an angle of 30° with the horizontal until the box attains a speed of 1.0 m/s. (a) What is the change of kinetic energy of the box? (b) What is the work done by the friction force...
2. A boy pulls a 23.0-kg box with a 230-N force at 30° above a horizontal surface. If the coefficient of kinetic friction between the box and the horizontal surface is is 0.21 and the box is pulled a distance of 22.0 m, what is the work done by the friction force on the box?