1. A force of 42 N is needed to start a box sliding across the floor. The weight of the box is 55 N. Draw all the forces acting on the box. e How large is the force of friction? þIs the frictional force static or kinetic? c. What is the coefficient of friction? 2. If the coefficient of kinetic friction between a crate and the floor is 0.20, how much force is needed to slide a 92 kg crate uniformly across the floor?
1. A force of 42 N is needed to start a box sliding across the floor. The weight of the box is 55 N. Draw all the forces acting on the box. e How large is the force of friction? þIs the frictional force static or kinetic? c. What is the coefficient of friction? 2. If the coefficient of kinetic friction between a crate and the floor is 0.20, how much force is needed to slide a 92 kg crate uniformly across the floor?
College Physics
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ISBN:9781938168000
Author:Paul Peter Urone, Roger Hinrichs
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![2 of 2
2. If the coefficient of kinetic friction between a crate and the floor is 0.20,
how much force is needed to slide a 92 kg crate uniformly across the
floor?
3. Why is it more difficult to lean over and push a heavy box across the floor
than it is to attach a rope and pull the box at the same angle? Draw a force
diagram for each situation and resolve the applied force into its components.
Concentrate on the normal force and its effect on friction.
4. A hockey puck has a mass of 1.0 kg. The coefficient of kinetic friction
between the puck and ice is 0.15. A force of 2.6 N is applied horizontally to
the puck to push it to the right. Draw and label all the forces acting on the
puck.
a. The normal force acting on the puck is
N.
b. The force of kinetic friction is
N.
c. The net force acting on the puck horizontally is
N.
d. The acceleration of the puck will be
_m/s?.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fc764a39d-ae3a-4bd4-a82a-085d8cab6588%2F27763c75-fe54-409c-8eec-b67bda8cf3ea%2Fbkxxoo_processed.jpeg&w=3840&q=75)
Transcribed Image Text:2 of 2
2. If the coefficient of kinetic friction between a crate and the floor is 0.20,
how much force is needed to slide a 92 kg crate uniformly across the
floor?
3. Why is it more difficult to lean over and push a heavy box across the floor
than it is to attach a rope and pull the box at the same angle? Draw a force
diagram for each situation and resolve the applied force into its components.
Concentrate on the normal force and its effect on friction.
4. A hockey puck has a mass of 1.0 kg. The coefficient of kinetic friction
between the puck and ice is 0.15. A force of 2.6 N is applied horizontally to
the puck to push it to the right. Draw and label all the forces acting on the
puck.
a. The normal force acting on the puck is
N.
b. The force of kinetic friction is
N.
c. The net force acting on the puck horizontally is
N.
d. The acceleration of the puck will be
_m/s?.
![1. A force of 42 N is needed to start a box sliding across the floor. The
weight of the box is 55 N. Draw all the forces acting on the box.
a How large is the force of friction?
b. Is the frictional force static or kinetic?
c. What is the coefficient of friction?
2. If the coefficient of kinetic friction between a crate and the floor is 0.20,
how much force is needed to slide a 92 kg crate uniformly across the
floor?
3. Why is it more difficult to lean over and push a heavy box across the floor
than it is to attạch a rope and pull the box at the same angle? Draw a force
diagram for each situation and'resolve the applied force into its components.
Concentrate on the normal force and its effect on friction.
4. A hockey puck has a mass of 1.0 kg. The coefficient of kinetic friction
between the puck and ice is 0.15. A force of 2.6 N is applied horizontally to
the puck to push it to the right. Draw and label all the forces acting on the](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fc764a39d-ae3a-4bd4-a82a-085d8cab6588%2F27763c75-fe54-409c-8eec-b67bda8cf3ea%2Frvg4b49_processed.jpeg&w=3840&q=75)
Transcribed Image Text:1. A force of 42 N is needed to start a box sliding across the floor. The
weight of the box is 55 N. Draw all the forces acting on the box.
a How large is the force of friction?
b. Is the frictional force static or kinetic?
c. What is the coefficient of friction?
2. If the coefficient of kinetic friction between a crate and the floor is 0.20,
how much force is needed to slide a 92 kg crate uniformly across the
floor?
3. Why is it more difficult to lean over and push a heavy box across the floor
than it is to attạch a rope and pull the box at the same angle? Draw a force
diagram for each situation and'resolve the applied force into its components.
Concentrate on the normal force and its effect on friction.
4. A hockey puck has a mass of 1.0 kg. The coefficient of kinetic friction
between the puck and ice is 0.15. A force of 2.6 N is applied horizontally to
the puck to push it to the right. Draw and label all the forces acting on the
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