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Reynold's Number

74.A block of...

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74.A block of mass 20 kg is moved with constant velocity along an inclined plane of inclination 37^° with help of a force of constant power 50 W. If the coefficient of kinetic friction between block and surface is 0.25, then what fraction of power is used against gravity? (1) Image not present (2) Image not present (3) Image not present (4) Image not present

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Q. Block of mass

10 k g

is moving on an inclined plane with constant velocity

10 m / s

. The coefficient of kinetic friction between the incline plane and block is:

Q. A block of mass

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is kept on an inclined plane having an angle of inclination

37^{\circ}

attached with a spring of force constant

20 N / m

as shown in the figure. If the coefficient of friction between block and incline is

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Q. A block of mass

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θ

. What is the work done by external force in pulling the block along the inclined plane through a height

h

with constant velocity?

Q. A block of mass

4 kg

is kept on an inclined plane having an angle of inclination

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attached with a spring of force constant

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as shown in the figure. If the coefficient of friction between the block and incline is

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, find the range in which the block can be at rest without slipping from its equilibrium position?

Q. A block of mass

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10 N

parallel to the inclined surface as shown in the figure.
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along the incline, then the work against gravity is (Take

g = 10 m s^{- 2})

.

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