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sveta [45]
3 years ago
14

A student drops a ball from a height of 97.0m. If the ball increases speed at a uniform rate of 10.0m/s^2, determine all unknown

s and answer the following questions.
How long did the ball remain in the air?

What was the balls speed just before striking the ground?
Physics
1 answer:
Fudgin [204]3 years ago
6 0

given :

h = 97.0 m

g = 10.0m/s²

find:

a) t

b) Vt

solutions:

a)

h = ½.g.t²

97 = ½. 10.t²

97 = 5.t²

t² = 97/5 = 19.4

t =√19.4 = 4.4

the ball will remain in the air

for 4.4 s

b)

Vt = g. t

= 10 × 4,4

= 44 m/s

the balls speed before striking the ground

= 44 m/s

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6 0
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Answer:

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8 0
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7 0
3 years ago
Read 2 more answers
a 1 gram spiders sits on a platform rotating at 78 rpm. the spider is 15 cm from the centre disk. find the speed of the spider
olga nikolaevna [1]

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</em>
(After the last appearance of pi,
all numbers are rounded.)<em>

</em>
8 0
3 years ago
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