Question

A block of mass 4 kg lies over a horizontal surface [g=10 m/s^2]. The normal reaction between the block and the surface is

Answer 1

Answer:

0

Explanation:

M=4 kg

G=10m/s²

H=0(because it's lies over on a horizontal surface)

now,

We khow that,

=mgh

=4.10.0

such that, potential energy= 0

Answer 2

Answer:

Maximum frictional force acting =μmg=0.6×1×10=6N

Pseudo force acting on the body =ma=1×5=5N

∵ pseudo force < frictional force

The frictional force acting is only 5N

Explanation:

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