Question

A horizontal force of magnitude 32.5 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 36.0 J. What is the increase in thermal energy of the
floor?

(c) What is the increase in the kinetic energy of the block?

Answer #1

A horizontal force of 60.0 N is applied to a 3.00 kg block as
the block slides a distance of 0.500 m up a ramp. The ramp is
inclined at an angle of 30.0◦ and the coefficient of kinetic
friction between the ramp and the block is 0.600. If the block is
initially at rest, how fast is it moving at the end of the
displacement? Please make answer very detailed

A rope that is directed 30° above the horizontal, is exerting a
10.0-N force to pull a 5.0-kg block at constant speed along a 5.0-m
horizontal floor. After drawing the free-body diagram find:
the magnitude of the normal force from the floor on the block
the magnitude of the force of friction
the work done by the rope's force
the increase in the thermal energy of the block-floor system
the coefficient of kinetic friction between the block and
floor.

A worker pushed a 36.0 kg block 6.60 m along a level floor at
constant speed with a force directed 23.0° below the horizontal. If
the coefficient of kinetic friction between block and floor was
0.400, what were (a) the work done by the worker's
force and (b) the increase in thermal energy of
the block-floor system?

A factory worker pushes a 29.8 kg crate a distance of 5.0 m
along a level floor at constant velocity by pushing downward at an
angle of 30 ∘ below the horizontal. The coefficient of kinetic
friction between the crate and floor is 0.26.
1.What magnitude of force must the worker apply to move the
crate at constant velocity?
2.How much work is done on the crate by this force when the
crate is pushed a distance of 5.0 m...

A horizontal force of magnitude F = 100 N is applied to slide a
block of mass m = 5 kg up a ramp inclined at θ = 37 o to the
horizontal. If the coefficient of kinetic friction between the
block and the ramp is 0.4, what will be the acceleration of the
block?

A factory worker pushes a 29.8 kg crate a distance of 5.0 m
along a level floor at constant velocity by pushing downward at an
angle of 30 ∘ below the horizontal. The coefficient of kinetic
friction between the crate and floor is 0.26.
1.What magnitude of force must the worker apply to move the
crate at constant velocity?
2.How much work is done on the crate by this force when the
crate is pushed a distance of 5.0 m...

(a) A constant 20 N force pushes a small ball in the direction
of the force over a distance of 5.0 m. What is the work done by the
force?
(b) A toy cart is pulled a distance of 6.0 m in a straight line
across the floor. The force pulling the cart has a magnitude of 20
N and is directed at 37° above the horizontal. What is the work
done by this force?
(c) A sled plus passenger...

A contestant in a winter sporting event pushes a 46.2 kg block
of ice across a horizontal frozen lake. He pushes the block at an
angle of 26° below the horizontal. If the coefficient of kinetic
friction is 0.19, what is the force required to push the block at a
constant speed?

A person pushes on a 58-kg refrigerator with a horizontal force
of -275 N; the minus sign indicates that the force points in the −x
direction. The coefficient of static friction is 0.55.
(a) If the refrigerator does not move, what are the magnitude
and direction of the static frictional force that the floor exerts
on the refrigerator? Static frictional force =
(b) What is the magnitude of the largest pushing force that can
be applied to the refrigerator before...

Chapter 08, Problem 045
A rope is used to pull a 5.16 kg block at constant speed 6.62 m
along a horizontal floor. The force on the block from the rope is
4.47 N and directed 10.5° above the horizontal. What are
(a) the work done by the rope's force,
(b) the increase in thermal energy of the
block-floor system, and (c) the coefficient of
kinetic friction between the block and floor?

ADVERTISEMENT

Get Answers For Free

Most questions answered within 1 hours.

ADVERTISEMENT

asked 9 minutes ago

asked 21 minutes ago

asked 29 minutes ago

asked 31 minutes ago

asked 37 minutes ago

asked 45 minutes ago

asked 50 minutes ago

asked 56 minutes ago

asked 56 minutes ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago