JAMB - Physics (1984 - No. 2)
For which of the underlisted quantities is the derived unit \(ML^2T^{-2}\) correct? i. moment of a force ii. work iii. acceleration
i only
ii only
iii only
i and ii
ii and iii
解释
Moment = force x distance
= m x a x d
= kg x \(\frac{m}{s^2}\) x \(\frac{m}{1}\)
= \(ML^2T^{-2}\)
= m x a x d
= kg x \(\frac{m}{s^2}\) x \(\frac{m}{1}\)
= \(ML^2T^{-2}\)