Question

B
10 m
F = 25 N
A
30°
3. A force of 25 N is
required to pull up a
block of mass 4 kg along
an inclined plane making
an angle of 30° with the
horizontal. If the block is
moved through a distance of 10 m along the inclined
plane as shown in the figure.
(a) Calculate the work done by the force in pulling the
block.
(b) Calculate the work done against the force of gravity
(g = 10 m s-2).​

Answer 1

Answer:

Hence, the block will not move and friction will be static will act in the direction opposite to driving force, i.e., in downward direction. c. To move block, the least value of driving force should be 40 N.

Explanation:

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