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Two trolleys A and B are moving with acc...

Two trolleys A and B are moving with accelerations a and 2a, respectively, in the same direction. To an observer in trolley A. Find the magnitude of the pseudo force acting on a block of mass m on trolley B.

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Pseudo force=ma in backward direction.
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CENGAGE PHYSICS-NEWTON'S LAWS OF MOTION 1-Exercise 6.2
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