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5. Which of the following is true about the ball's velocity and acceleration the highest point
B?
A. Its velocity and acceleration are both zero
B. Its velocity is up and non-zero constant and acceleration is zero
C Its velocity is down and non-zero constant and acceleration is zero
D Its velocity is zero and acceleration is down and non-zero constant
6.A ball is tossed straight up with an initial velocity of 5 0 m/s. What is the speed of the
ball at its maximum height?
A 0 Om/s B 50 m/s 0.9.8 m/s D. 14.8 m/s
7. Four students were discussing projectile motion in the canteen after science class Who
do you agree with?
Luz: "A projectile's Vx changes because of gravity, and its Vy remains constant"
Joseph: "Both Vx and Vy are constant."
Tito: 'A projectile has no acceleration in the vertical dimension but it does accelerate
horizontally."
Jay: "A projectile has vertical acceleration and a constant horizontal velocity"
A Luz B Joseph C. Tito D Jay
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Sagot :

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