Question

2.
KE
1)
A large slab of mass 5 kg lies on a smooth
horizontal surface, with a block of mass
4kg lying on the top of it. The coefficient
of friction between the block and the slab
is 0.25. If the block is pulled horizontally
by a force of F=6 N, then the work done
by the force of friction on the slab,
between the instants t=2s to t=3s is
(g = 10 ms )
0
3
4kg
5kg
77
77777
KE
1) 2.4) 2) 5.55 J3) 4.444) 10 J​

Answer 1

Answer:

answerrrrrrtttttrrrrrrrrrrrrrr

=5.55J