Question

A cricket ball of mass 150 g has an initial velocity $\overrightarrow{u} = (3\widehat{i} + 4\widehat{j})ms^{- 1}$ and a final velocity $\overrightarrow{v} = - (3\widehat{i} + 4\widehat{j})ms^{- 1}$ after being hit., the magnitude of the momentum transferred during the hit is.

• A. Zero
• B. $0.75kgms^{- 1}$
• C. $1.5kgms^{- 1}$
• D. $14kgms^{- 1}$

Answer 1

Answer: (C)

$1.5kgms^{- 1}$

Answer 2

The magnitude of the momentum transferred during the hit is

}{= \sqrt{0.81 + 1.44kgms^{- 1}} = 1.5kgms^{- 1}}$$