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.
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]