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A 28.0-kg block is initially at rest on a horizontal surface. A horizontal force of 73.0...
A 28.0-kg block is initially at rest on a horizontal surface. A horizontal force of 73.0 N is required to set the block in motion, after which a horizontal force of 55.0 N is required to keep the block moving with constant speed. (a) Find the coefficient of static friction between the block and the surface. (b) Find the coefficient of kinetic friction between the block and the surface.
A dockworker loading crates on a ship finds that a 20-kg crate, initially at rest on...
A dockworker loading crates on a ship finds that a 20-kg crate, initially at rest on a horizontal surface, requires a 73-N horizontal force to set it in motion. However, after the crate is in motion, a horizontal force of 51 N is required to keep it moving with a constant speed. Find the coefficients of static and kinetic friction between crate and floor.
QUESTION 1 2.5 points Save Answer A block of mass 1.56kg is being pulled by a...
QUESTION 1 2.5 points Save Answer A block of mass 1.56kg is being pulled by a string parallel to the contact surface with a slowly increasing force. If the block remains stationary until the force reaches 10N, what is the static friction coefficient? QUESTION 2 2.5 points Save Answer A box of mass 3,401.62g is on level ground being pulled bya slowly increasing force at an angle 35.69 above horizontal. If the block is stationary until this force reaches of...
A dockworker loading crates on a ship finds that a 25-kg crate, intially at rest on...
A dockworker loading crates on a ship finds that a 25-kg crate, intially at rest on a horizontal surface, requires a 72-N horizontal force to set it in motion. However, after the crate is in motion, a horizontal force of 50 N is required to keep it moving with a constant speed. Find the coefficients of static and kinetic friction between crate and floor. static friction kinetic friction
TUUUURJE Question 1 4 points The 3 kg block is subjected to a force F 153...
TUUUURJE Question 1 4 points The 3 kg block is subjected to a force F 153 N. When s 6 m, the block is moving to the left with a speed of 8 m/s. Determine its speed when s 15 m The coefficier kinetic friction between the block and the ground is 0.25. F S uesi 2 81 3 Question 2 3 points Save Ληswe Two equal-length springs are "nested together in order to form a shock absorber. If it...
Question 4 10 points Save Answer A skater is moving with an initial speed of 2.8...
Question 4 10 points Save Answer A skater is moving with an initial speed of 2.8 m/s on rough horizontal ice. He comes to rest uniformly after moving 4.6 m due to friction from the ice. What is the magnitude of friction force exerted on the skater if the mass of the skater is 72 kg? 7.9N 57N 46.7 N 61.4 N
Not A 5.00-g bullet moving with an initial speed of v 410 m/s is fired into...
Not A 5.00-g bullet moving with an initial speed of v 410 m/s is fired into and passes through a 1.00-kg block as shown in the figure below. The block, initially at rest on a frictionless, horizontal surface, is connected to a spring with force constant 940 N/m. The block moves d-5.60 cm to the right after impact before being brought to rest by the spring (a) Find the speed at which the bullet emerges from the block 146 your-esponse...
1a . A constant force of 32.3 N pulls on a 20 kg block on a...
1a . A constant force of 32.3 N pulls on a 20 kg block on a horizontal surface. The force is directed at 30o above the horizontal. A friction force impedes the motion. If at the start of the motion the block was at rest and after 11 meters it has a velocity of 3, what is the coefficient of friction? 1b. What is the work done by the constant force when the block is moved 8 meters? 2.What constant,...
A van accelerates down a hill (see figure below), going from rest to 30.0 m/s in...
A van accelerates down a hill (see figure below), going from rest to 30.0 m/s in 6.30 s. During the acceleration, a toy m = 0.490 kg) hangs by a string from the van's ceiling. The acceleration is such that the string remains perpendicular to the ceiling. (a) Determine the angle e. (b) Determine the tension in the string. +-/2 points SerCP10 4.P.039. My Notes + Ask Your Teacher A dockworker loading crates on a ship finds that a 21-kg...
just the answer please. no need for solution L Moving to another question will save this...
just the answer please. no need for solution
L Moving to another question will save this response. uestion 7 How much force is needed to make a rocket move in constant velocity in a frictionless outer space? the force needed is equal to its thrust Oe=mc2 O incomplete data given O Its equal to the net force acting in the object o nothing, just nothing A Moving to another question will save this response. L Moving to another question will...
QUESTION 1 2.5 points Save Answer A block of mass 1.56kg is being pulled by a string parallel to the contact surface with a slowly increasing force. If the block remains stationary until the force reaches 10N, what is the static friction coefficient? QUESTION 2 2.5 points Save Answer A box of mass 3,401.62g is on level ground being pulled bya slowly increasing force at an angle 35.69 above horizontal. If the block is stationary until this force reaches of...
A dockworker loading crates on a ship finds that a 25-kg crate, intially at rest on a horizontal surface, requires a 72-N horizontal force to set it in motion. However, after the crate is in motion, a horizontal force of 50 N is required to keep it moving with a constant speed. Find the coefficients of static and kinetic friction between crate and floor. static friction kinetic friction
TUUUURJE Question 1 4 points The 3 kg block is subjected to a force F 153 N. When s 6 m, the block is moving to the left with a speed of 8 m/s. Determine its speed when s 15 m The coefficier kinetic friction between the block and the ground is 0.25. F S uesi 2 81 3 Question 2 3 points Save Ληswe Two equal-length springs are "nested together in order to form a shock absorber. If it...
Question 4 10 points Save Answer A skater is moving with an initial speed of 2.8 m/s on rough horizontal ice. He comes to rest uniformly after moving 4.6 m due to friction from the ice. What is the magnitude of friction force exerted on the skater if the mass of the skater is 72 kg? 7.9N 57N 46.7 N 61.4 N
Not A 5.00-g bullet moving with an initial speed of v 410 m/s is fired into and passes through a 1.00-kg block as shown in the figure below. The block, initially at rest on a frictionless, horizontal surface, is connected to a spring with force constant 940 N/m. The block moves d-5.60 cm to the right after impact before being brought to rest by the spring (a) Find the speed at which the bullet emerges from the block 146 your-esponse...
A van accelerates down a hill (see figure below), going from rest to 30.0 m/s in 6.30 s. During the acceleration, a toy m = 0.490 kg) hangs by a string from the van's ceiling. The acceleration is such that the string remains perpendicular to the ceiling. (a) Determine the angle e. (b) Determine the tension in the string. +-/2 points SerCP10 4.P.039. My Notes + Ask Your Teacher A dockworker loading crates on a ship finds that a 21-kg...
just the answer please. no need for solution
L Moving to another question will save this response. uestion 7 How much force is needed to make a rocket move in constant velocity in a frictionless outer space? the force needed is equal to its thrust Oe=mc2 O incomplete data given O Its equal to the net force acting in the object o nothing, just nothing A Moving to another question will save this response. L Moving to another question will...
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