First slide

Inertial and uniformly accelerated frame of reference

Question

As shown in figure, if acceleration of M with respect to ground is 2 ms^-2, then

Moderate

A

Acceleration of m with respect to M is 5 m s^-2.
B

Acceleration of m with respect to ground is 5 m s^-2.
C

Acceleration of m with respect M is 2 m s^-2.
D

Acceleration of m with respect to ground is 10 m s^-2.

Solution

If acceleration of M is 2 m s^-2, then acceleration of m w.r.t. M will be 2 m s^-2
Acceleration of m w.r.t. ground
$a_{m} = \sqrt{2^{2} + 2^{2} + 2 \times 2 \times 2 \cos (180 - 37^{\circ})} = \sqrt{8 / 5} {ms}^{- 2}$

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