A net force of 46 N accelerates a 2-kg mass over a distance of 10 m....
A net force of 46 N accelerates a 2-kg mass over a distance of 10 m. (a) What is the work done by this net force? J (b) What is the increase in kinetic energy of the mass? J
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A net force of 46 N accelerates a 2-kg mass over a distance of
10 m....
attraction if the distance between these two masses is halved? Energy and Oscillations 4 A force...
attraction if the distance between these two masses is halved? Energy and Oscillations 4 A force of 8O N used to push a table across a room does 800 J of wok. How far the chair move in this process? S. A net force of 60 N accelerates a 5.0 kg mass over a distance of 10 m. What is the work done by this net force? a. b. What is the increase in kinetic energy of the mass? 6-...
A horizontal force of magnitude 39.5 N pushes a block of mass 4.05 kg a distance...
A horizontal force of magnitude 39.5 N pushes a block of mass 4.05 kg a distance of 3.00 m across a floor, where the coefficient of kinetic friction is 0.600. (a) How much work is done by that applied force on the block-floor system? (b) During that displacement, the thermal energy of the block increases by 44.0 J. What is the increase in thermal energy of the floor? (c) What is the increase in the kinetic energy of the block?
A child pulls a block across the floor with force applied by a horizontally held string....
A child pulls a block across the floor with force applied by a horizontally held string. A smaller frictional force also acts upon the block yielding a net force on the block that is smaller than the force applied by the string. How does the work done by the string compare with the change in the block’s kinetic energy? the work done is greater than the change in the kinetic energy of the block The work done is equal to...
A force of 30 N accelerates a 2.0 kg object from rest for a distance of...
A force of 30 N accelerates a 2.0 kg object from rest for a distance of 3.0 m along a level, frictionless surface; the force then changes to 15 N and acts for an additional 2.0 m. (a) What is the final kinetic energy of the object? (b) How fast is it moving?
A horizontal force of magnitude 32.1 N pushes a block of mass 3.91 kg across a...
A horizontal force of magnitude 32.1 N pushes a block of mass 3.91 kg across a floor where the coefficient of kinetic friction is 0.579. (a) How much work is done by that applied force on the block-floor system when the block slides through a displacement of 2.99 m across the floor? (b) During that displacement, the thermal energy of the block increases by 33.6 J. What is the increase in thermal energy of the floor? (c) What is the...
A horizontal force of magnitude 41.6 N pushes a block of mass 3.86 kg across a...
A horizontal force of magnitude 41.6 N pushes a block of mass 3.86 kg across a floor where the coefficient of kinetic friction is 0.591. (a) How much work is done by that applied force on the block-floor system when the block slides through a displacement of 3.38 m across the floor? (b) During that displacement, the thermal energy of the block increases by 37.8 J. What is the increase in thermal energy of the floor? (c) What is the...
A horizontal force of magnitude 40.3 N pushes a block of mass 3.61 kg across a...
A horizontal force of magnitude 40.3 N pushes a block of mass 3.61 kg across a floor where the coefficient of kinetic friction is 0.589. (a) How much work is done by that applied force on the block-floor system when the block slides through a displacement of 2.98 m across the floor? (b) During that displacement, the thermal energy of the block increases by 37.3 J. What is the increase in thermal energy of the floor? (c) What is the...
A box of mass 6.0 KG accelerates from rest by a force across the floor at...
A box of mass 6.0 KG accelerates from rest by a force across the floor at a rate of 2.3 m/s^2 for 5.0s. Find the net work done on the box if the weight is pulled up by a force of 85 N.
1. A 3.00 kg mass is initially at rest when it is subjected to an applied...
1. A 3.00 kg mass is initially at rest when it is subjected to an applied force directed in the +x direction and the force of kinetic friction while upon a horizontal surface. The work done by the applied force on the mass is known to be 25.0 J over a particular time interval. a) If the speed of the mass is measured to be 3.50 m/s at the end of the time interval, what is the net work done?...
A block with a mass of 32.5 kg is pushed with a horizontal force of 150...
A block with a mass of 32.5 kg is pushed with a horizontal force of 150 N. The block moves at a constant speed across a level, rough floor a distance of 6.50 m. (a) What is the work done (in J) by the 150 N force? J (b) What is the coefficient of kinetic friction between the block and the floor?
attraction if the distance between these two masses is halved? Energy and Oscillations 4 A force of 8O N used to push a table across a room does 800 J of wok. How far the chair move in this process? S. A net force of 60 N accelerates a 5.0 kg mass over a distance of 10 m. What is the work done by this net force? a. b. What is the increase in kinetic energy of the mass? 6-...
A horizontal force of magnitude 39.5 N pushes a block of mass 4.05 kg a distance of 3.00 m across a floor, where the coefficient of kinetic friction is 0.600. (a) How much work is done by that applied force on the block-floor system? (b) During that displacement, the thermal energy of the block increases by 44.0 J. What is the increase in thermal energy of the floor? (c) What is the increase in the kinetic energy of the block?
1. A 3.00 kg mass is initially at rest when it is subjected to an applied force directed in the +x direction and the force of kinetic friction while upon a horizontal surface. The work done by the applied force on the mass is known to be 25.0 J over a particular time interval. a) If the speed of the mass is measured to be 3.50 m/s at the end of the time interval, what is the net work done?...
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