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Muscular Force

A force f act...

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A force f acts on a block of mass m at an angle x. find minimum value of this force in case of pushing and pulling for moving body

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Q. A pulling force of

100 N

is acting at an angle of

30^{0}

with the horizontal on a body of mass

50 kg

placed on a rough horizontal surface. Will the same force cause the body to move if it is a pushing force for the body? If not, what should be the value of the force (acting at the same angle) to cause the body to just move? Take

g = 10 {m/s}^{2}

.

Q. A pulling force of

100 N

is acting at an angle of

30^{0}

with the horizontal on a body of mass

50 kg

placed on a rough horizontal surface. Will the same force cause the body to move if it is a pushing force for the body? If not, what should be the value of the force (acting at the same angle) to cause the body to just move? Take

g = 10 {m/s}^{2}

.

Q. What is the minimum value of force ( in following two cases ) required to pull a block of mass m on a horizontal surface having coefficient of friction

μ

? Also find the angle this force makes with the horizontal.

Q. A block of mass

m

is placed at rest on a horizontal rough surface with angle of friction

θ

. The block is pulled with a force

F

ϕ

with the horizontal. The minimum value of

F

required to move the block is:

Q. A block of mass

η

. is pulled by mass means of a force

F

up an inclined plane forming an angle

θ

with the horizontal as shown in figure. the coefficient of friction is

μ

. Find the minimum force required for the block to move up and the angle

α

at that instant.

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