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The dimensional formula for acceleration is
  • a)
    [LT2]
  • b)
    [LT-2]
  • c)
    [L2T]
  • d)
    [L2T2]
Correct answer is option 'B'. Can you explain this answer?
Most Upvoted Answer
The dimensional formula for acceleration isa)[LT2]b)[LT-2]c)[L2T]d)[L2...
Acceleration is the rate of change of velocity of an object with respect to time. It is a vector quantity and its direction is the same as that of the change in velocity. The dimensional formula for acceleration is given by LT-2, where L stands for length and T stands for time.

Explanation:

Acceleration can be mathematically represented as:

a = (v-u)/t

where a is the acceleration, v is the final velocity, u is the initial velocity and t is the time taken to change the velocity.

Dimensional formula for velocity is LT-1, as velocity is distance travelled per unit time. Therefore, the dimensional formula for acceleration can be obtained by dividing the dimensional formula for velocity by the dimensional formula for time.

a = (v-u)/t = (LT-1 - LT-1)/T = LT-2

Hence, the correct answer is option B, LT-2.

Conclusion:

In conclusion, the dimensional formula for acceleration is LT-2, which means that acceleration is directly proportional to length and inversely proportional to time squared. It is important to understand the dimensional formula of a physical quantity as it helps in formulating equations and understanding the physical nature of the quantity.
Free Test
Community Answer
The dimensional formula for acceleration isa)[LT2]b)[LT-2]c)[L2T]d)[L2...
Acceleration=rate of change of velocity ÷time
=velocity ÷time
= [LT-²]÷[T]. (velocity=LT-¹)
= [LT-¹T-¹]
=[LT-²]
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