If the acceleration due to gravity is 10 text ms-2 and the units of length and time are changed to kilometre and hour respectively, the numerical value of the acceleration due to gravity is:

Question

If the acceleration due to gravity is 10 text ms-2 and the units of length and time are changed to kilometre and hour respectively, the numerical value of the acceleration due to gravity is: (A) 360000 (B) 72000 (C) 36000 (D) 129600

Tardigrade Admin · Accepted Answer

n2=10[ (m/km) ][ (s/h) ]-2 =10[ (m/1000m) ][ (s/3600s) ]-2 =129600

Q. If the acceleration due to gravity is $10 m s^{- 2}$ and the units of length and time are changed to kilometre and hour respectively, the numerical value of the acceleration due to gravity is:

360000

72000

36000

129600

73000

$n^{2} = 10 [\frac{m}{km}] [\frac{s}{h}]^{- 2}$ $= 10 [\frac{m}{1000 m}] [\frac{s}{3600 s}]^{- 2}$ $= 129600$

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