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MariettaO [177]
3 years ago
6

A ball is thrown upwards with an initial velocity of 25.o m/s, what is the velocity of the ball at 11.9 m from the ground?

Physics
1 answer:
mylen [45]3 years ago
5 0

Answer:

v2 = 19.79m/s

Explanation:

Okay, lets write down everything we have;

v1 = 25m/s [up]

v2 = ?

d = 11.9 [up]

a = 9.8 [down]

So the formula we will use is v2^2 = v1^2 + 2ad. We also have to make acceleration negative, so everything can have the same direction of up:

v2^2 = v1^2 + 2ad

v2^2 = (25)^2 + 2(-9.8)(11.9)

v2^2 = 625 - 233.24

v2^2 = 391.76

v2 = 19.79m/s

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