a. Explain why the vertical component of the velocity (Vy) of a projectile motion is zero at the maximum height but the Horizontal Component of the velocity (Vx) is constant thorough out the parabolic motion?
a. Explain why the vertical component of the velocity (Vy) of a projectile motion is zero at the maximum height but the Horizontal Component of the velocity (Vx) is constant thorough out the parabolic motion?
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Transcribed Image Text:Question 2
a. Explain why the vertical component of the velocity (Vy) of a projectile
motion is zero at the maximum height but the Horizontal Component of
the velocity (Vx) is constant thorough out the parabolic motion?
АР (6)
b.
Prove that, the range, R the time of flight, T and the Maximum height,
H by a projectile are respectively given by;
3
Fla) sin20 ,
(2v,sin®)/
vở sin? e
R
T =
and H =
2g
AN (9)
c. You are on an island and you have two coconuts. The coconuts are
launched with the same initial speed. The trajectory of coconut A is such
that the coconut goes very high, but falls not much farther from the spot
it was launched. The trajectory of coconut B is such that coconut B goes
not as high as coconut A, but falls much farther from the spot it was
launched. Explain with the idea of projectile motion which coconut hits
the ground first.
EV (5)
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