Question 1 Report
State the dimension of; (a) impulse; (ii) acceleration; (iii) work
(a) Impulse. Impulse \(=\) force \(\times\) time \(=\) change in momentum. Its dimension is that of momentum:
\[ [\text{impulse}] = MLT^{-1}. \](ii) Acceleration. Acceleration \(=\) velocity/time \(= \dfrac{LT^{-1}}{T}\):
\[ [\text{acceleration}] = LT^{-2}. \](iii) Work. Work \(=\) force \(\times\) distance \(= (MLT^{-2}) \times L\):
\[ [\text{work}] = ML^{2}T^{-2}. \]Everything you need to excel in your exams