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Physics — Question 18

QCAA 2020, Paper 1 · 1 mark

Q18 · 2020 · Paper 1Simple familiar1 mark

QUESTION 18

Calculate the initial vertical velocity of a projectile with an initial velocity of 68 m s−168\,\mathrm{m\,s^{-1}} at an angle of 51∘51^\circ up from the horizontal.
(A)
43 m s−143\,\mathrm{m\,s^{-1}}
(B)
51 m s−151\,\mathrm{m\,s^{-1}}
(C)
53 m s−153\,\mathrm{m\,s^{-1}}
(D)
68 m s−168\,\mathrm{m\,s^{-1}}
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