Question

An object is thrown vertically upwards to a height of 80m. Calculate its
velocity when it was thrown upwards (take value of g as 10 m/sec?​

Answer 1

v = root(2gh)

v = root(2 × 10 × 80)

v = 40m/s

Answer 2

Answer:

40 M/SEC

Explanation:

we will use formula v² - u² = 2as

as our u = 0 , v = ? s= 80 m and a = 10m/sec²

put values

v² - 0 = 1600

v = 40 m/s

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