In the previous problem `3` the magnitude of the momentum transferred during the hit is .

Options

A. zero
B. `0.75 Kg-ms^(-1)`
C. `1.5 kg-ms^(-1)`
D. `14 kg ms^(-1)`

Answer

C

Explanation

By previous solution `Delta p - (0.9 hati + 1.2 hatj)`
Magnitude = `|Deltap| = sqrt((0.9)^(2) + (1.2)^(2))`
`= sqrt(0.81 + 1.44) = 1.5 kg - m s^(-1)`.