Question

In the figure shown all the surfaces are frictionless and mass of block m=l kg, block and wedge are
held initially at rest, now wedge is given a horizontal acceleration of 10m/s2
by applying a force on the
wedge so that the block does not slip on the wedge, the work done by normal force in ground frame on
the block in 3 sec is (g=10 m/s2
)
A) 30J B) 60J C) 150J D) 100 3 J

Answer 1

Explanation:

In Fig 8.301, shown all the surfaces are frictionless, and mass of the block is m = 100 g. The block and the wedge are held initially at rest. Now the wedge is given a horizontal acceleration of 10 ms

−2

by applying a force on the wedge, so that the block does not slip on the wedge. Then find the work done in joules by the normal force in ground frame on the block in 1 s.

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