Physics And Measurement Question 25

Question: If the acceleration due to gravity is 10ms−2 and the units of length and time are changed in kilometer and hour respectively, the numerical value of the acceleration is

[Kerala PET 2002]

Options:

A) 360000

B) 72,000

C) 36,000

D) 129600

Show Answer

Answer:

Correct Answer: D

Solution:

n2=n1[L1L2]1[T1T2]−2

=10[meterkm]1[sechr]−2

n2=10[m103m]1[sec3600sec]−2

=129600

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