A student Investigates the motion of a ball rolling down a slope.
The diagram shows the speed v of the ball at different times t.
[=05
v = 0 cm/s
f = 0.2s
V = 2.8 cm/s
ball
t = 0.45
V = 5.1 cm/s
t = 0.65
v = 7.0 cm/s
Which statement describes the motion of the ball?
A
The acceleration is not constant
B
The acceleration is negative.
с
The speed is decreasing
D
The velocity is constant.
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Answer:
no is the one of the pagal
Explanation:
kkshkxa
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