Question

Two blocks of mass 4 kg and 2 kg are placed side by side on a smooth horizontal surface (as shown in
the figure). A horizontal force of 20 N is applied on 4 kg block. Find
i) The acceleration of each block in normal reaction on the block B due to A
20 N
B
4kg 2 kg
10 mis
20
15
b)
m/s
25
M
3
3
mis
10
20 m
20
m/s
102
3
3
3.
Two masses m, = 5 kg and m, = 4.8 kg tied to a string are hanging over a light frictionless pulley.
The acceleration of the masses when left free to move is (g = 9.8 ms 1
[ 1
a) 4.8 ms-2
b) 9.8 ms 2
c) 5 ms-2
m
d) 0.2 ms-a
[
The upward acceleration of the 4 kg block is in the shown figure (g = 10 ms )

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Answer 1

Answer:

d is the correct answer I think