A 50-kg solid circular cylinder A rests on a 35-kg block B as
shown in Fig. P16-112. When a force F is applied to the block, the
block accelerates at a rate of 5 m/s2. If the coefficients of
friction between the block and the cylinder and between the block
and the horizontal surface are both μs = μk = 0.25, determine the
magnitude of F and the frictional force exerted by the block on the
cylinder.
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A 50-kg solid circular cylinder A rests on a 35-kg block B as
shown in Fig....
The coefficients of friction between a 1.5 kg block and a surface are μs = 0.50...
The coefficients of friction between a 1.5 kg block and a surface are μs = 0.50 and μk = 0.40. Assume the only other force acting on the block is that due to gravity. What is the magnitude of the frictional force (in newtons) on the block if the block is moving and the surface is inclined at 30o? Use g = 9.79 m/s2.
The force P is applied to the 49-kg block when it is at rest. Determine the...
The force P is applied to the 49-kg block when it is at rest.
Determine the magnitude and direction of the friction force exerted
by the surface on the block if (a) P = 0, (b) P = 219 N, and (c) P
= 311 N. (d) What value of P is required to initiate motion up the
incline? The static and kinetic coefficients of friction between
the block and the incline are μs = 0.29 and μk = 0.25,...
A 24-N block rests on a horizontal surface. The coefficients of static and kinetic friction between...
A 24-N block rests on a horizontal surface.
The coefficients of static and kinetic friction between the surface
and the block are ?s=0.76 and ?k=0.34. A horizontal string is
attached to the block and a constant tension T is maintained in the
string.
blem 5-23a: A 24 N block rests on a horizontal surface. The coefficients of static and kinetic friction between the surface and the block are us=0.76 and μk=0.34. A horizontal string is attached to the block and...
A block with mass M rests on a frictionless surface and is connected to a horizontal spring of force constant k. The oth...
A block with mass M rests on a frictionless surface and is connected to a horizontal spring of force constant k. The other end of the spring is attached to a wall. A second block with mass m rests on top of the first block. The coefficient of static friction between the a blocks is μs. a) Find the maximum amplitude of oscillation such that the top block will not slip on the bottom block. b) Suppose the coefficient of...
A 10.0 kg block is resting on a horizontal surface when a force P is applied...
A 10.0 kg block is resting on a horizontal surface when a force
P is applied to it for 7.00 seconds. The variation of P with time
is shown in the figure where P is in Newtons and t is in seconds.
If the coefficients of static and kinetic friction between the
block and the surface are μs = 0.600 and μk = 0.400 respectively,
and g = 10.0 m/s2 calculate
a) [2] The time t_1 at which the block...
A 2-kg block is placed on the top of a 5-kg block . . . .
A 2-kg block is placed on the top of a 5-kg block The coefficientof kinetic friction between the 5-kg block and the surface isμk =0.2. A horizontal force F is appliedto the 5-kgblock.a) Draw a free-body diagram for each block. What force acceleratesthe 2-kg block?b) Calculate the magnitude of the force necessary to pull bothblocks to the right withacceleration 3 m/s2.c) Find the minimum coefficient of static friction μs betweenthe blocks suchthat the 2-kg block does not slip under an...
The 75-kg man pushes on the 150-kg crate with a horizontal force F. The coefficients of...
The 75-kg man pushes on the 150-kg crate with a horizontal force F. The coefficients of static and kinetic friction between the crate and the surface are μs = 0.3 and μk = 0.1, and the coefficient of static friction between the man's shoes and the surface is μ′s = 0.8. What is the greatest acceleration the man can give the crate if the man's acceleration is zero at this instant? I keep getting 1.96 but it says answer is...
A block of mass “m” sits on a (bigger) block of mass “4m” that is on...
A block of mass “m” sits on a (bigger) block of mass “4m” that is on a frictionless table. The coefficients of friction between the two blocks are μs (static) and μk (kinetic). Assume that a horizontal force “F” is applied to the block on top (i.e. the smaller block with mass “m”). The force “F” is variable. The figure below is representative of this scenario. (You may use m = 10 kg, μs = 0.8, μk = 0.6, and...
A contestant in a winter sporting event pulls a 42 kg block of ice in the positive horizontal direction
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Given: a mass (50) kg is on the edge of a rough horizontal turntable with radius...
Given: a mass (50) kg is on the edge of a rough horizontal turntable with radius R = 2.00 m
Friction coefficients between the mass and the table are μs = 0.50 and μk = 0.40.
The table starts to rotate (rotate) around the vertical axis of symmetry with a constant angular acceleration α = 0.60 rad / s2.
It has been requested to calculate the work of the frictional force from the start to the time t* (the point...
The force P is applied to the 49-kg block when it is at rest.
Determine the magnitude and direction of the friction force exerted
by the surface on the block if (a) P = 0, (b) P = 219 N, and (c) P
= 311 N. (d) What value of P is required to initiate motion up the
incline? The static and kinetic coefficients of friction between
the block and the incline are μs = 0.29 and μk = 0.25,...
A 24-N block rests on a horizontal surface.
The coefficients of static and kinetic friction between the surface
and the block are ?s=0.76 and ?k=0.34. A horizontal string is
attached to the block and a constant tension T is maintained in the
string.
blem 5-23a: A 24 N block rests on a horizontal surface. The coefficients of static and kinetic friction between the surface and the block are us=0.76 and μk=0.34. A horizontal string is attached to the block and...
A 10.0 kg block is resting on a horizontal surface when a force
P is applied to it for 7.00 seconds. The variation of P with time
is shown in the figure where P is in Newtons and t is in seconds.
If the coefficients of static and kinetic friction between the
block and the surface are μs = 0.600 and μk = 0.400 respectively,
and g = 10.0 m/s2 calculate
a) [2] The time t_1 at which the block...
Given: a mass (50) kg is on the edge of a rough horizontal turntable with radius R = 2.00 m
Friction coefficients between the mass and the table are μs = 0.50 and μk = 0.40.
The table starts to rotate (rotate) around the vertical axis of symmetry with a constant angular acceleration α = 0.60 rad / s2.
It has been requested to calculate the work of the frictional force from the start to the time t* (the point...
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