Question

A ball is thrown vertically upwards with an initial velocity of 9.8 m/s. Its velocity after 2 s will be:
A)9.8 m/s downwards
C) 4.9 m/s downwards
B) 9.8 m/s upwards
D) zero​

Answer 1

Answer:

0

Explanation:

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Answer 2

u = 9.8 m/s

t = 2 s

g = -9.8 m/s²

v = u + at

» v = 9.8 - 9.8(2)

» v = -9.8 m/s

The negative sign represents the downward direction.

Option A ✓