Question

In the two cases shown below, the coefficient of Kinetic friction between the block and the contacting surface is the same and both the identical blocks each of mass M are moving with the same uniform speed V, along the horizontal planes, then​

Answer 1

Explanation:

F

fric

=μ

s

W=0.4∗20=8N

b. Since F

applied

<F

fric

F

fric

=5N

c. Minimum force required to start the motion F=F

staticfric

=8N

d. Minimum force required to start the motion

F=F

kineticfric

=μ

k

W=0.2∗20=4N

e. F>F

staticfric

motion started.

F>F

kineticfric

hence motion continues.

F

fric

=