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2. A stationary object is resting on a flat surface. A force of 5 Newtons pushes...
Problem A 100 kg object that is at rest, pushes with a force of 250 Newtons,...
Problem A 100 kg object that is at rest, pushes with a force of 250 Newtons, moving it in a straight line at a distance of 15 meters along a horizontal floor with a coefficient of kinetic friction equal to 0.25. Calculate: a) the work of the applied force (WF) b) the magnitude of the weight (w) c) the magnitude of the kinetic friction force (Frk d) the work of the kinetic friction (WFrk) e) the total work (Wtotal) f...
A mass of 7 kg is resting on a horizontal, frictionless surface. Force 1 is applied...
A mass of 7 kg is resting on a horizontal, frictionless surface. Force 1 is applied to it at 23 degrees below the horizontal, force 2 has a magnitude of 19 N and is applied vertically downward, force 3 has a magnitude of 3 N and is applied vertically upwards, and force 4 has a magnitude of 21 N and is applied in the-x direction to the object. When these forces are applied to the object, the object moves 9...
Assume the force (in Newtons on an object is given by the function of position F(x)-2...
Assume the force (in Newtons on an object is given by the function of position F(x)-2 xA3+16, where x is the position (in meters). The object has a mass of 2 kg, what is the work (in Joules) done on the object from x-Orm to ? work done = What is the work (in Joules) done on the object from x=2 m to x=4 m? what is the work (in Joules) done on the objet from x=0 m to x=4...
QUESTION 5 A mass of 12 kg is placed on a horizontal surface with friction with...
QUESTION 5 A mass of 12 kg is placed on a horizontal surface with friction with a coefficient of static friction of 0.81 and coefficient of kinetic friction of 0.44. A force of 13 Newtons is applied in the -y direction and a force of 16 Newtons is also applied in the -y direction. Another force is applied in the +x direction (see sketch). The force applied in the +x direction is increased until it is 1.9 times the force...
1. A 3000 kg truck travelling at 50 km/hr strikes a stationary 1000 kg car, locking...
1. A 3000 kg truck travelling at 50 km/hr strikes a stationary 1000 kg car, locking the two vehicles together. A) What is the final velocity of the two vehicles? B) How much of the initial kinetic energy is lost to the collision? 2.What is the gravitational force between two masses of mass 30 lbs and 50 lbs, separated by a distance of 2 meters? 3. Hans Full is pulling on a rope to drag his backpack to school across...
A weight lifter pushes dumbbells of total mass 20 kg upward with a force of just...
A weight lifter pushes dumbbells of total mass 20 kg upward with a force of just a little more than the weight of the dumbbells a distance of 1.2 meters. He then lets the dumbbells drop back down without doing any work on them. If he wants to use (actually:convert) 50 kCal of energy in this workout, how many repetitions does he have to do? (There are 4.2 Joules in a calorie and 1000 calories in a kCal)
3) A mass of 5 kg is resting on a horizontal, frictionless surface. Force 1 is...
3) A mass of 5 kg is resting on a horizontal, frictionless surface. Force 1 is applied to it at 20 degrees below the horizontal in the -x direction, force 2 has a magnitude of 88 N and is applied in the +x direction , and force 3 has a magnitude of 25 N and is applied vertically downwards. When these forces are applied, the normal force acting on the mass is twice the amount of its weight. Also, when...
A force of F = 4.0 i + 10.0j Newtons moves an object through a displacement...
A force of F = 4.0 i + 10.0j Newtons moves an object through a displacement of d=-2.0 i +1.0j meters. The object is initially at rest. $ 16. How much work does the force do to the object? P=14.0i)+(10) N =(-2:01+10 g) m (1 kg) 8 J 17. How fast is the object at the end of the displacement? no friction mass 1.0 10kg
A block is pulled along a rough horizontal surface by force of magnitude 100 Newtons, at...
A block is pulled along a rough horizontal surface by force of
magnitude 100 Newtons, at an angle of 30 degrees as shown. The
block has a mass M=20.0 kg, and the coefficient of kinetic friction
between the block and the surface is 0.50.
a)The horizontal component of the tension, T, is
b)The normal force exerted upward by the floor on the block has
a magnitude of
c)If the block moves 10.0 m to the right, the work done by...
Work Done by Normal Force Consider an object sliding along the surface shown below. Choose and...
Work Done by Normal Force Consider an object sliding along the surface shown below. Choose and show a direction of motion for the object and show the direction of the normal force. Use this figure to do the scalar product given below. oM bns av W, n-s Is the work done by the normal force exerted between two colliding objects also zero? Explain. Work Done by Weight Unlike the normal and kinetic friction forces, the direction of an object's motion...
A mass of 7 kg is resting on a horizontal, frictionless surface. Force 1 is applied to it at 23 degrees below the horizontal, force 2 has a magnitude of 19 N and is applied vertically downward, force 3 has a magnitude of 3 N and is applied vertically upwards, and force 4 has a magnitude of 21 N and is applied in the-x direction to the object. When these forces are applied to the object, the object moves 9...
Assume the force (in Newtons on an object is given by the function of position F(x)-2 xA3+16, where x is the position (in meters). The object has a mass of 2 kg, what is the work (in Joules) done on the object from x-Orm to ? work done = What is the work (in Joules) done on the object from x=2 m to x=4 m? what is the work (in Joules) done on the objet from x=0 m to x=4...
A force of F = 4.0 i + 10.0j Newtons moves an object through a displacement of d=-2.0 i +1.0j meters. The object is initially at rest. $ 16. How much work does the force do to the object? P=14.0i)+(10) N =(-2:01+10 g) m (1 kg) 8 J 17. How fast is the object at the end of the displacement? no friction mass 1.0 10kg
A block is pulled along a rough horizontal surface by force of
magnitude 100 Newtons, at an angle of 30 degrees as shown. The
block has a mass M=20.0 kg, and the coefficient of kinetic friction
between the block and the surface is 0.50.
a)The horizontal component of the tension, T, is
b)The normal force exerted upward by the floor on the block has
a magnitude of
c)If the block moves 10.0 m to the right, the work done by...
Work Done by Normal Force Consider an object sliding along the surface shown below. Choose and show a direction of motion for the object and show the direction of the normal force. Use this figure to do the scalar product given below. oM bns av W, n-s Is the work done by the normal force exerted between two colliding objects also zero? Explain. Work Done by Weight Unlike the normal and kinetic friction forces, the direction of an object's motion...
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