Homework Answers
Both are correct in their own sense and would result in exact same motion with same acceleration and same normal reaction between blocks in both cases.
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5. Two experiments are performed. In (A), an 18.0-N force pushes horizontally on a 2.00-kg block...
A horizontal force of magnitude 35.0 N pushes a block of mass 4.00 kg across a...
A horizontal force of magnitude 35.0 N pushes a block of mass 4.00 kg across a floor where the coefficient of kinetic friction is 0.600. What is the increase in the kinetic energy of the block when the block slides through a displacement of 5.00 m across the floor?
A person pushes horizontally with a force of 220 N on a 61 kg crate to...
A person pushes horizontally with a force of 220 N on a 61 kg crate to move it across a level floor. The coefficient of kinetic friction is 0.23. (a) What is the magnitude of the frictional force? (b) What is the magnitude of the crate's acceleration?
A person pushes with a force of 2.00 N on a stick that is 3.00 m...
A person pushes with a force of 2.00 N on a stick that is 3.00 m long directly toward the axis of an object whose moment of inertia is 4.00 kg m2 about that axis. If the object had been rotating at 5.00 rad/s, 6.00 s later its rate of rotation will be: a. 4.00 rad/s b. 5.00 rad/s c. 9.00 rad/s d. 14.00 rad/s e. none of these.
A horizontal force of 99 N pushes a 11 kg block up a frictionless incline that...
A horizontal force of 99 N pushes a 11 kg block up a frictionless incline that makes an angle of 41° with the horizontal. (a) What is the normal force that the incline exerts on the block? =N (b) What is the acceleration of the block? (Hint: assume up the block as the positive direction.) =m/s2
7. A 95 N applied force pushes a 5 kg block against a frictionless wall as...
7. A 95 N applied force pushes a 5 kg block against a frictionless wall as shown, where 0 = 35°. What is the magnitude of the block's acceleration? a) 1.10 m/s2 b) 1.39 m/s2 c) 1.67 m/s2 d) 2.25 m/s2 e) 2.82 m/s2
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 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...
-Your answer is partially correct. A horizontal force of magnitude 36.0 N pushes a block of...
-Your answer is partially correct. A horizontal force of magnitude 36.0 N pushes a block of mass 4.32 kg across a floor where the coefficient of kinetic friction is 0.596. (a) How much work is done by that applied force on the block-floor system when the block slides through a displacement of 4.53 m across the floor? (b) During that displacement, the thermal energy of the block increases by 44.9 J.What is the increase in thermal energy of the floor?...
A person pushes horizontally with a force of 220 N on a 61 kg crate to move it across a level floor. The coefficient of kinetic friction is 0.23. (a) What is the magnitude of the frictional force? (b) What is the magnitude of the crate's acceleration?
7. A 95 N applied force pushes a 5 kg block against a frictionless wall as shown, where 0 = 35°. What is the magnitude of the block's acceleration? a) 1.10 m/s2 b) 1.39 m/s2 c) 1.67 m/s2 d) 2.25 m/s2 e) 2.82 m/s2
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?
-Your answer is partially correct. A horizontal force of magnitude 36.0 N pushes a block of mass 4.32 kg across a floor where the coefficient of kinetic friction is 0.596. (a) How much work is done by that applied force on the block-floor system when the block slides through a displacement of 4.53 m across the floor? (b) During that displacement, the thermal energy of the block increases by 44.9 J.What is the increase in thermal energy of the floor?...
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