Questions
A small block of mass m rests on a smooth wedge of angle . With what horizontal acceleration ‘a’ should the wedge be pulled, as shown in Fig., so that the block falls freely?
detailed solution
Correct option is C
mgcosθ=masinθa=gcotθWhen it will loose the contact it becomes a freely falling body i.e., normal reaction will be zero.Talk to our academic expert!
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A pendulum of mass m hangs from a support fixed to a trolley. The direction of the string (i.e. angle ) when the trolley rolls up a plane of inclination with acceleration a is
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