Question

A stone is falling from a mountain. The velocity of the stone is given by V=9.8t.Draw it's graph and find the velocity of the stone'4' seconds after start​

Answer 1

Answer:

39.2m/s

Step-by-step explanation:

The velocity of the stone is given by the velocity function

v = 9.8t

where v is velocity of the stone after t seconds.

We need to find the velocity of the stone '4' second after start.

Substitute t = 4 in the given velocity function.

v = 9.8(4)

v = 32.2m/s

Therefore the velocity of the stone '4' second after start is 39.2 m/s.

For graph

v1 = 9.8

v2 = 9.8(2) = 19.6

v3 = 9.8(3) = 29.4

v4 = 9.8(4) = 39.2

Hope this will help you