SATHEE: Physics And Measurement Question 260

Physics And Measurement Question 260

Question: With the usual notations, the following equation $S_{t} = u + \frac{1}{2} a (2 t - 1)$ is

Options:

A) Only numerically correct

B) Only dimensionally correct

C) Both numerically and dimensionally correct

D) Neither numerically nor dimensionally correct

Show Answer

Answer:

Correct Answer: A

Solution:

[a] On $L H S, S_{t}$ is the distance while on RHS, u is the speed, so it is not dimensionally correct. It is numerically correct only.

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Physics And Measurement Question 260

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Question: With the usual notations, the following equation $S_{t} = u + \frac{1}{2} a (2 t - 1)$ is