CAPE Physics Unit 1 · 2015 · Paper 1 · Question Q10
An object of mass, m, travelling initially at a velocity, u, is acted upon by a force, F, for a period, t, until it is travelling with a velocity, v. Which of the following equations can be used to determine the impulse of the force?
I. \text{Impulse} = Ft
II. \text{Impulse} = mv - mu
III. \text{Impulse} = \frac{mv - mu}{t}
- (A)I only
- (B)II only
- (C)I and II only
- (D)I and III only
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